In 1331 Blanche Évreux Queen Consort France was born to Philip "Noble" III King Navarre (age 24) and Joan Capet II Queen Navarre (age 18). She a great x 3 granddaughter of King Henry III of England. Coefficient of inbreeding 5.86%.

In 1326 Joan Évreux was born to Philip "Noble" III King Navarre (age 19) and Joan Capet II Queen Navarre (age 13). She a great x 3 granddaughter of King Henry III of England. Coefficient of inbreeding 5.86%.

In 1330 Louis Évreux was born to Philip "Noble" III King Navarre (age 23) and Joan Capet II Queen Navarre (age 17). He a great x 3 grandson of King Henry III of England. Coefficient of inbreeding 5.86%.

Around 1329 Maria Évreux Queen Consort Aragon was born to Philip "Noble" III King Navarre (age 22) and Joan Capet II Queen Navarre (age 16). She a great x 3 granddaughter of King Henry III of England. Coefficient of inbreeding 5.86%.

On 10 Oct 1332 Charles "Bad" II King Navarre was born to Philip "Noble" III King Navarre (age 26) and Joan Capet II Queen Navarre (age 20). He a great x 3 grandson of King Henry III of England. Coefficient of inbreeding 5.86%.

On 25 Aug 1707 Louis I King Spain was born to Philippe V King Spain (age 23) and Maria Luisa Savoy (age 18). He a great x 2 grandson of King Charles I of England, Scotland and Ireland. Coefficient of inbreeding 5.82%.

On 23 Sep 1713 Ferdinand VI King Spain was born to Philippe V King Spain (age 29) and Maria Luisa Savoy (age 25) at the Royal Alcázar of Madrid. He a great x 2 grandson of King Charles I of England, Scotland and Ireland. Coefficient of inbreeding 5.82%.

On 08 Jan 1707 Louis Bourbon Duke Brittany was born to Louis Bourbon Duke Burgundy (age 24) and Maria Adelaide Savoy (age 21). He a great x 2 grandson of King Charles I of England, Scotland and Ireland. Coefficient of inbreeding 5.82%.

On 25 Jun 1704 Louis Bourbon Duke Brittany was born to Louis Bourbon Duke Burgundy (age 21) and Maria Adelaide Savoy (age 18). He a great x 2 grandson of King Charles I of England, Scotland and Ireland. Coefficient of inbreeding 5.82%.

On 07 Jun 1712 Philip Bourbon was born to Philippe V King Spain (age 28) and Maria Luisa Savoy (age 23). He a great x 2 grandson of King Charles I of England, Scotland and Ireland. Coefficient of inbreeding 5.82%.

On 02 Jul 1709 Philip Bourbon was born to Philippe V King Spain (age 25) and Maria Luisa Savoy (age 20). He a great x 2 grandson of King Charles I of England, Scotland and Ireland. Coefficient of inbreeding 5.82%.

On 15 Feb 1710 Louis XV King France was born to Louis Bourbon Duke Burgundy (age 27) and Maria Adelaide Savoy (age 24). He a great x 2 grandson of King Charles I of England, Scotland and Ireland. Coefficient of inbreeding 5.82%.

In May 1326 Jeanne Capet was born to Charles IV King France I King Navarre (age 31) and Joan Évreux Queen Consort France (age 16). She a great x 3 granddaughter of King Henry III of England. Coefficient of inbreeding 5.78%.

On 01 Apr 1328 Blanche Capet was born to Charles IV King France I King Navarre and Joan Évreux Queen Consort France (age 18). She a great x 3 granddaughter of King Henry III of England. Coefficient of inbreeding 5.78%.

In 1327 Marie Capet was born to Charles IV King France I King Navarre (age 32) and Joan Évreux Queen Consort France (age 17). She a great x 3 granddaughter of King Henry III of England. Coefficient of inbreeding 5.78%.

On 29 Jun 1463 John Montfort was born to Francis Montfort II Duke Brittany (age 30) and Margaret Montfort Duchess Brittany (age 20). Coefficient of inbreeding 5.61%.

In 1424 Blanche Trastámara II Queen Navarre was born to John II King Aragon (age 25) and Blanche Évreux Queen Consort Aragon (age 36). Coefficient of inbreeding 5.57%.

In 1423 Juana Trastámara was born to John II King Aragon (age 24) and Blanche Évreux Queen Consort Aragon (age 35). Coefficient of inbreeding 5.57%.

On 02 Feb 1426 Eleanor Trastámara Queen Consort Navarre was born to John II King Aragon (age 27) and Blanche Évreux Queen Consort Aragon (age 38). Coefficient of inbreeding 5.57%.

On 29 May 1421 Charles "Viana" IV King Navarre was born to John II King Aragon (age 22) and Blanche Évreux Queen Consort Aragon (age 33). Coefficient of inbreeding 5.57%.

On 14 Aug 1473 Margaret York Countess of Salisbury was born to George York 1st Duke of Clarence (age 23) and Isabel Neville Duchess Clarence (age 21) at Farleigh Hungerford Castle [Map]. She a great x 3 granddaughter of King Edward III of England. Coefficient of inbreeding 5.36%.

On 25 Feb 1475 Edward "Last Plantagenet" York 17th Earl Warwick was born to George York 1st Duke of Clarence (age 25) and Isabel Neville Duchess Clarence (age 23) at Warwick Castle [Map]. He a great x 3 grandson of King Edward III of England. Coefficient of inbreeding 5.36%.

On 06 Oct 1476 Richard York was born to George York 1st Duke of Clarence (age 26) and Isabel Neville Duchess Clarence (age 25) at Tewkesbury Abbey [Map]. He a great x 3 grandson of King Edward III of England. Coefficient of inbreeding 5.36%.

Around 14 Apr 1470 Anne York was born to George York 1st Duke of Clarence (age 20) and Isabel Neville Duchess Clarence (age 18). She a great x 3 granddaughter of King Edward III of England. Coefficient of inbreeding 5.36%.

In Dec 1473 Edward York Prince of Wales was born to King Richard III of England (age 21) and Anne Neville Queen Consort England (age 17) at Middleham Castle [Map]. Coefficient of inbreeding 5.36%.

On 11 Oct 1675 Maria Josepha Clementina Habsburg Spain was born to Leopold Habsburg Spain I Holy Roman Emperor (age 35) and Claudia Felicitas of Holy Roman Empress (age 22). On 11 Jul 1676 Maria Josepha Clementina Habsburg Spain died. Coefficient of inbreeding 5.35%.

On 11 Sep 1674 Anna Maria Josepha Habsburg Spain was born to Leopold Habsburg Spain I Holy Roman Emperor (age 34) and Claudia Felicitas of Holy Roman Empress (age 21). She died three months later on 21 Dec 1674. Coefficient of inbreeding 5.35%.

On 27 Apr 1806 Maria Christina of the Two Sicilies Queen Consort Spain was born to Francis I of the Two Sicilies (age 28) and Maria Isabel Queen Consort of the Two Sicilies (age 16). Coefficient of inbreeding 5.30%.

In 1938 Sophia Glücksburg Queen Consort Spain was born to Paul I King Greece (age 36) and Frederica Hanover Queen Consort Greece (age 20). She a great x 2 granddaughter of Queen Victoria of the United Kingdom. Coefficient of inbreeding 5.26%.

On 02 Jun 1940 Constantine II King Hellenes was born to Paul I King Greece (age 38) and Frederica Hanover Queen Consort Greece (age 23). He a great x 2 grandson of Queen Victoria of the United Kingdom. Coefficient of inbreeding 5.26%.

In 1942 Irene Glücksburg was born to Paul I King Greece (age 40) and Frederica Hanover Queen Consort Greece (age 24). She a great x 2 granddaughter of Queen Victoria of the United Kingdom. Coefficient of inbreeding 5.26%.

On 25 Oct 1510 Renée of France Duchess of Ferrara was born to Louis XII King France (age 48) and Anne of Brittany Queen Consort France (age 33). Coefficient of inbreeding 5.00%.

On 14 Oct 1499 Claude Valois Orléans Queen Consort France was born to Louis XII King France (age 37) and Anne of Brittany Queen Consort France (age 22). Coefficient of inbreeding 5.00%.

On 01 Jul 1336 Philip Duke Valois was born to King Philip "Fortunate" VI of France (age 42) and Joan "Lame" Burgundy Queen Consort France (age 43) at Vincennes. Coefficient of inbreeding 5.00%.

On 26 Apr 1319 King John "The Good" II of France was born to King Philip "Fortunate" VI of France (age 25) and Joan "Lame" Burgundy Queen Consort France (age 25). Coefficient of inbreeding 5.00%.

In 1326 Marie Valois was born to King Philip "Fortunate" VI of France (age 32) and Joan "Lame" Burgundy Queen Consort France (age 32). Coefficient of inbreeding 5.00%.

Joan or Blanche Valois was born to King Philip "Fortunate" VI of France and Joan "Lame" Burgundy Queen Consort France. Coefficient of inbreeding 5.00%.

On 17 Sep 1688 Maria Luisa Savoy was born to Victor Amadeus King Sardinia (age 22) and Anne Marie Bourbon Queen Consort Sardinia (age 19) at Turin. She a great granddaughter of King Charles I of England, Scotland and Ireland. Coefficient of inbreeding 4.95%.

On 27 Apr 1701 Charles Emmanuel III King Sardinia was born to Victor Amadeus King Sardinia (age 34) and Anne Marie Bourbon Queen Consort Sardinia (age 31) at Turin. He a great grandson of King Charles I of England, Scotland and Ireland. Coefficient of inbreeding 4.95%.

On 06 May 1699 Victor Amadeus Savoy was born to Victor Amadeus King Sardinia (age 32) and Anne Marie Bourbon Queen Consort Sardinia (age 29) at Turin. He a great grandson of King Charles I of England, Scotland and Ireland. Coefficient of inbreeding 4.95%.

On 01 Dec 1705 Emanuele Philibert Savoy was born to Victor Amadeus King Sardinia (age 39) and Anne Marie Bourbon Queen Consort Sardinia (age 36) at Turin. He a great grandson of King Charles I of England, Scotland and Ireland. Coefficient of inbreeding 4.95%.

On 14 Aug 1687 Maria Anna Savoy was born to Victor Amadeus King Sardinia (age 21) and Anne Marie Bourbon Queen Consort Sardinia (age 17) at Turin. She a great granddaughter of King Charles I of England, Scotland and Ireland. Coefficient of inbreeding 4.95%.

On 06 Dec 1685 Maria Adelaide Savoy was born to Victor Amadeus King Sardinia (age 19) and Anne Marie Bourbon Queen Consort Sardinia (age 16) at Turin. She a great granddaughter of King Charles I of England, Scotland and Ireland. Coefficient of inbreeding 4.95%.

On 30 Apr 1809 Charles Nightingale 12th Baronet was born to Charles Ethelston Nightingale 11th Baronet (age 24) and Maria Dickonson Lady Nightingale (age 20) at Shoreditch [Map]. Coefficient of inbreeding 4.88%.

In 1740 Maria Vittoria Margherita Savoy was born to Charles Emmanuel III King Sardinia (age 38) and Elisabeth Therese Lorraine Queen Consort Sardinia (age 28). He a great x 2 grandson of King Charles I of England, Scotland and Ireland. Coefficient of inbreeding 4.84%.

In 1741 Benedetto Maria Maurizio Savoy was born to Charles Emmanuel III King Sardinia (age 39) and Elisabeth Therese Lorraine Queen Consort Sardinia (age 29). He a great x 2 grandson of King Charles I of England, Scotland and Ireland. Coefficient of inbreeding 4.84%.

In 1738 Carlo Francesco Savoy was born to Charles Emmanuel III King Sardinia (age 36) and Elisabeth Therese Lorraine Queen Consort Sardinia (age 26). He a great x 2 grandson of King Charles I of England, Scotland and Ireland. Coefficient of inbreeding 4.84%.

On 14 Oct 1404 Marie Valois Anjou Queen Consort France was born to King Louis of Naples (age 27) and Yolanda Barcelona Queen Consort Naples. Coefficient of inbreeding 4.77%.

On 16 Jan 1409 René Valois Anjou I Duke Anjou was born to King Louis of Naples (age 31) and Yolanda Barcelona Queen Consort Naples. Coefficient of inbreeding 4.77%.

In 1412 Yolande Valois Anjou Duchess Brabant Duchess Brittany was born to King Louis of Naples (age 34) and Yolanda Barcelona Queen Consort Naples at Arles. Coefficient of inbreeding 4.77%.

In 1414 Charles Valois Anjou Count Maine was born to King Louis of Naples (age 36) and Yolanda Barcelona Queen Consort Naples. Coefficient of inbreeding 4.77%.

On 25 Sep 1403 Louis Valois Anjou III Duke Anjou was born to King Louis of Naples (age 25) and Yolanda Barcelona Queen Consort Naples. Coefficient of inbreeding 4.77%.

After 1658 John Bellenden was born to William Ker 2nd Earl Roxburghe (age 35) and Jane Ker Countess Roxburgh. Coefficient of inbreeding 4.72%.

Jean Ker Countess Balcarres was born to William Ker 2nd Earl Roxburghe and Jane Ker Countess Roxburgh. Coefficient of inbreeding 4.72%.

Around 1658 Robert Ker 3rd Earl Roxburghe was born to William Ker 2nd Earl Roxburghe (age 35) and Jane Ker Countess Roxburgh. Coefficient of inbreeding 4.72%.

In 1807 William Ponsonby 4th Baron Ponsonby was born to Richard Ponsonby (age 35) and Frances Staples. Coefficient of inbreeding 4.69%.

On 23 Jun 1433 Francis Montfort II Duke Brittany was born to Richard Montfort (age 38) and Margaret Valois (age 26). Coefficient of inbreeding 4.62%.

On 05 Jun 1523 Margaret Valois Duchess Berry and Savoy was born to King Francis I of France (age 28) and Claude Valois Orléans Queen Consort France (age 23). Coefficient of inbreeding 4.50%.

On 31 Mar 1519 King Henry II of France was born to King Francis I of France (age 24) and Claude Valois Orléans Queen Consort France (age 19). Coefficient of inbreeding 4.50%.

On 22 Jan 1522 Charles Valois was born to King Francis I of France (age 27) and Claude Valois Orléans Queen Consort France (age 22). Coefficient of inbreeding 4.50%.

On 10 Aug 1520 Madeleine Valois was born to King Francis I of France (age 25) and Claude Valois Orléans Queen Consort France (age 20). Coefficient of inbreeding 4.50%.

On 23 Oct 1516 Charlotte Valois was born to King Francis I of France (age 22) and Claude Valois Orléans Queen Consort France (age 17). Coefficient of inbreeding 4.50%.

On 19 Aug 1515 Louise Valois was born to King Francis I of France (age 20) and Claude Valois Orléans Queen Consort France (age 15). Coefficient of inbreeding 4.50%.

On 28 Feb 1518 Francis Valois was born to King Francis I of France (age 23) and Claude Valois Orléans Queen Consort France (age 18). Coefficient of inbreeding 4.50%.

Before 1415 John Valois II Count of Nevers, Etampes, Rethel and Eu was born to Philip Valois II Count Nevers (age 25) and Bonne Artois Duchess Burgundy (age 18). Coefficient of inbreeding 4.47%.

In 1414 Charles Valois I Count Nevers was born to Philip Valois II Count Nevers (age 24) and Bonne Artois Duchess Burgundy (age 18). Coefficient of inbreeding 4.47%.

On 20 Jan 1751 Ferdinand Duke of Parma was born to Infante Philip of Spain (age 30) and Louise Elisabeth of France (age 23). Coefficient of inbreeding 4.46%.

On 09 Dec 1751 Maria Luisa of Parma was born to Infante Philip of Spain (age 31) and Louise Elisabeth of France (age 24). Coefficient of inbreeding 4.46%.

In 1331 John Barcelona was born to Alfonso IV King Aragon (age 31) and Eleanor Ivrea Queen Consort Aragon (age 24). Coefficient of inbreeding 4.46%.

In 1329 Ferdinand Barcelona was born to Alfonso IV King Aragon (age 29) and Eleanor Ivrea Queen Consort Aragon (age 22). Coefficient of inbreeding 4.46%.

On 21 Sep 1640 Philip Bourbon I Duke Orléans was born to Louis XIII King France (age 38) and Anne of Austria Spain Queen Consort France (age 38). Coefficient of inbreeding 4.44%.

On 05 Sep 1638 Louis "Sun King" XIV King France was born to Louis XIII King France (age 36) and Anne of Austria Spain Queen Consort France (age 36). Coefficient of inbreeding 4.44%.

On 19 Jul 1746 Princess Marie Thérèse of France was born to Dauphin Louis Bourbon (age 16) and Infanta Maria Teresa Rafaela of Spain (age 20). Coefficient of inbreeding 4.43%.

On 28 Jan 1312 Joan Capet II Queen Navarre was born to Louis X King France I Navarre (age 22) and Margaret of Burgundy Queen Consort France (age 22). There was some doubt over her paternity since her mother had been embroiled in the Aunay Brothers Affair in which one of the brothers admitted under torture to having been Margaret's (age 22) lover. Her father (age 22), however, stated she was his legitimate daughter on his deathbed. Coefficient of inbreeding 4.42%.

In 1396 Alfonso V King Aragon was born to Ferdinand I King Aragon (age 15) and Eleanor of Alberquerque Queen Consort Aragon (age 22). Coefficient of inbreeding 4.41%.

In 1396 Maria Trastámara Queen Consort Castile was born to Ferdinand I King Aragon (age 15) and Eleanor of Alberquerque Queen Consort Aragon (age 22). Coefficient of inbreeding 4.41%.

Henry Trastámara was born to Ferdinand I King Aragon and Eleanor of Alberquerque Queen Consort Aragon. Coefficient of inbreeding 4.41%.

Eleanor Trastámara Queen Consort Portugal was born to Ferdinand I King Aragon and Eleanor of Alberquerque Queen Consort Aragon. Coefficient of inbreeding 4.41%.

Peter Trastámara was born to Ferdinand I King Aragon and Eleanor of Alberquerque Queen Consort Aragon. Coefficient of inbreeding 4.41%.

Sancho Trastámara was born to Ferdinand I King Aragon and Eleanor of Alberquerque Queen Consort Aragon. Coefficient of inbreeding 4.41%.

On 29 Jun 1398 John II King Aragon was born to Ferdinand I King Aragon (age 17) and Eleanor of Alberquerque Queen Consort Aragon (age 24). Coefficient of inbreeding 4.41%.

On 12 Jul 1435 Edward Aviz was born to Edward "The Philosopher" I King Portugal (age 43) and Eleanor Trastámara Queen Consort Portugal. He a great x 2 grandson of King Edward III of England. Coefficient of inbreeding 4.40%.

On 18 Sep 1434 Eleanor Aviz Holy Roman Empress was born to Edward "The Philosopher" I King Portugal (age 42) and Eleanor Trastámara Queen Consort Portugal. She a great x 2 granddaughter of King Edward III of England. Coefficient of inbreeding 4.40%.

On 17 Nov 1433 Ferdinand Aviz 2nd Duke Viseu was born to Edward "The Philosopher" I King Portugal (age 42) and Eleanor Trastámara Queen Consort Portugal. He a great x 2 grandson of King Edward III of England. Coefficient of inbreeding 4.40%.

On 07 Dec 1432 Maria Aviz was born to Edward "The Philosopher" I King Portugal (age 41) and Eleanor Trastámara Queen Consort Portugal. She a great x 2 granddaughter of King Edward III of England. Coefficient of inbreeding 4.40%.

In Oct 1429 John Aviz was born to Edward "The Philosopher" I King Portugal (age 37) and Eleanor Trastámara Queen Consort Portugal. He a great x 2 grandson of King Edward III of England. Coefficient of inbreeding 4.40%.

On 15 Jan 1432 Alfonso "The African" V King Portugal was born to Edward "The Philosopher" I King Portugal (age 40) and Eleanor Trastámara Queen Consort Portugal. He a great x 2 grandson of King Edward III of England. Coefficient of inbreeding 4.40%.

On 27 Nov 1430 Philippa Aviz was born to Edward "The Philosopher" I King Portugal (age 39) and Eleanor Trastámara Queen Consort Portugal. She a great x 2 granddaughter of King Edward III of England. Coefficient of inbreeding 4.40%.

On 26 Nov 1436 Catherine Aviz was born to Edward "The Philosopher" I King Portugal (age 45) and Eleanor Trastámara Queen Consort Portugal. She a great x 2 granddaughter of King Edward III of England. Coefficient of inbreeding 4.40%.

On 31 Mar 1439 Joan Aviz Queen Consort Castile was born to Edward "The Philosopher" I King Portugal and Eleanor Trastámara Queen Consort Portugal. She a great x 2 granddaughter of King Edward III of England. Coefficient of inbreeding 4.40%.

On 17 Jan 1636 Maria Anna "Mariana" Habsburg Spain was born to Philip IV King Spain (age 30) and Elisabeth Bourbon Queen Consort Spain (age 33). She died a month later. Coefficient of inbreeding 4.39%.

On 12 Mar 1634 Francis Ferdinand Habsburg Spain was born to Philip IV King Spain (age 28) and Elisabeth Bourbon Queen Consort Spain (age 31). Coefficient of inbreeding 4.39%.

On 14 Aug 1621 Maria Margaret Habsburg Spain was born to Philip IV King Spain (age 16) and Elisabeth Bourbon Queen Consort Spain (age 18). Coefficient of inbreeding 4.39%.

On 25 Nov 1623 Margaret Maria Catherine Habsburg Spain was born to Philip IV King Spain (age 18) and Elisabeth Bourbon Queen Consort Spain (age 21). Coefficient of inbreeding 4.39%.

On 21 Nov 1625 Maria Eugenia Habsburg Spain was born to Philip IV King Spain (age 20) and Elisabeth Bourbon Queen Consort Spain (age 22). Coefficient of inbreeding 4.39%.

On 31 Oct 1627 Isabella Maria Theresa Habsburg Spain was born to Philip IV King Spain (age 22) and Elisabeth Bourbon Queen Consort Spain (age 24). Coefficient of inbreeding 4.39%.

On 17 Oct 1629 Balthasar Charles Habsburg Spain Prince Asturias was born to Philip IV King Spain (age 24) and Elisabeth Bourbon Queen Consort Spain (age 26). Coefficient of inbreeding 4.39%.

On 20 Sep 1638 Maria Theresa of Spain Queen Consort France was born to Philip IV King Spain (age 33) and Elisabeth Bourbon Queen Consort Spain (age 35). Coefficient of inbreeding 4.39%.

Around 1456 Ralph Neville 3rd Earl of Westmoreland was born to John Neville 1st Baron Neville of Raby (age 46) and Anne Holland Countess Douglas and Avondale. He a great x 3 grandson of King Edward III of England. Coefficient of inbreeding 4.28%.

Anne Campbell was born to Archibald Campbell 1st Marquess Argyll and Margaret Douglas Marchioness Argyll. Coefficient of inbreeding 4.20%.

Mary Campbell Countess Breadalbaine and Holland was born to Archibald Campbell 1st Marquess Argyll and Margaret Douglas Marchioness Argyll. Coefficient of inbreeding 4.20%.

Jean Campbell was born to Archibald Campbell 1st Marquess Argyll and Margaret Douglas Marchioness Argyll. Coefficient of inbreeding 4.20%.

On 26 Feb 1629 Archibald Campbell 9th Earl Argyll was born to Archibald Campbell 1st Marquess Argyll (age 21) and Margaret Douglas Marchioness Argyll (age 19) at Dalkeith. Coefficient of inbreeding 4.20%.

Around 1630 Neill Campbell was born to Archibald Campbell 1st Marquess Argyll (age 22) and Margaret Douglas Marchioness Argyll (age 20). Coefficient of inbreeding 4.20%.

In 1364 Bonne Évreux was born to Charles "Bad" II King Navarre (age 31) and Joan Valois Queen Consort Navarre (age 20). Coefficient of inbreeding 4.14%.

In 1361 Charles III King Navarre was born to Charles "Bad" II King Navarre (age 28) and Joan Valois Queen Consort Navarre (age 17). Coefficient of inbreeding 4.14%.

In 1360 Marie Évreux was born to Charles "Bad" II King Navarre (age 27) and Joan Valois Queen Consort Navarre (age 16). Coefficient of inbreeding 4.14%.

Around 1370 Joanna of Navarre Queen Consort England was born to Charles "Bad" II King Navarre (age 37) and Joan Valois Queen Consort Navarre (age 26) at Pamplona. Coefficient of inbreeding 4.14%.

Peter Évreux Count Mortain was born to Charles "Bad" II King Navarre and Joan Valois Queen Consort Navarre. Coefficient of inbreeding 4.14%.

On 06 Oct 1894 Christopher William Gerald Henry Codrington 2nd Baronet was born to Gerald William Henry Codrington 1st Baronet (age 44) and Edith Henrietta Sybil Denison Lady Codrington (age 29). Coefficient of inbreeding 4.05%.

On 08 Jun 1875 Constance Blanche Godolphin Godolphin Osborne was born to George Godolphin Osborne 9th Duke Leeds (age 46) and Fanny Georgiana Pitt-Rivers Duchess Leeds (age 38). Coefficient of inbreeding 3.94%.

On 20 Feb 1872 Alexandra Louisa Godolphin Osborne was born to George Godolphin Osborne 9th Duke Leeds (age 43) and Fanny Georgiana Pitt-Rivers Duchess Leeds (age 35). Coefficient of inbreeding 3.94%.

On 30 May 1870 Ada Charlotte Godolphin Osborne was born to George Godolphin Osborne 9th Duke Leeds (age 41) and Fanny Georgiana Pitt-Rivers Duchess Leeds (age 33). Coefficient of inbreeding 3.94%.

On 17 May 1869 Alice Susan Godolphin Osborne was born to George Godolphin Osborne 9th Duke Leeds (age 40) and Fanny Georgiana Pitt-Rivers Duchess Leeds (age 32). Coefficient of inbreeding 3.94%.

On 18 Sep 1862 George Godolphin Osborne 10th Duke Leeds was born to George Godolphin Osborne 9th Duke Leeds (age 34) and Fanny Georgiana Pitt-Rivers Duchess Leeds (age 25). Coefficient of inbreeding 3.94%.

On 11 Mar 1864 Francis Granville Godolphin Osborne was born to George Godolphin Osborne 9th Duke Leeds (age 35) and Fanny Georgiana Pitt-Rivers Duchess Leeds (age 27). Coefficient of inbreeding 3.94%.

On 28 Jul 1867 Harriet Castalia Godolphin Osborne was born to George Godolphin Osborne 9th Duke Leeds (age 38) and Fanny Georgiana Pitt-Rivers Duchess Leeds (age 30). Coefficient of inbreeding 3.94%.

On 10 Apr 1866 Albert Edward Godolphin Osborne was born to George Godolphin Osborne 9th Duke Leeds (age 37) and Fanny Georgiana Pitt-Rivers Duchess Leeds (age 29). Coefficient of inbreeding 3.94%.

On 04 Nov 1861 George Frederick Osborne Osborne was born to George Godolphin Osborne 9th Duke Leeds (age 33) and Fanny Georgiana Pitt-Rivers Duchess Leeds (age 24). Coefficient of inbreeding 3.94%.

On 06 Jun 1739 August Adolf Wettin was born to Johann Adolph Wettin Duke Saxe Weissenfels (age 53) and Fredericka Saxe Coburg Altenburg (age 23) at Weißenfels, Burgenlandkreis, Saxony-Anhalt. Coefficient of inbreeding 3.94%.

On 27 Dec 1741 Fredericka Adolfine Wettin was born to Johann Adolph Wettin Duke Saxe Weissenfels (age 56) and Fredericka Saxe Coburg Altenburg (age 26) at Weißenfels, Burgenlandkreis, Saxony-Anhalt. Coefficient of inbreeding 3.94%.

On 17 May 1740 Johann Georg Adolf Wettin was born to Johann Adolph Wettin Duke Saxe Weissenfels (age 54) and Fredericka Saxe Coburg Altenburg (age 24) at Weißenfels, Burgenlandkreis, Saxony-Anhalt. Coefficient of inbreeding 3.94%.

On 07 Jun 1736 Karl Frederick Adolf Wettin was born to Johann Adolph Wettin Duke Saxe Weissenfels (age 50) and Fredericka Saxe Coburg Altenburg (age 20) at Weißenfels, Burgenlandkreis, Saxony-Anhalt. Coefficient of inbreeding 3.94%.

On 27 Jun 1738 Johann Adolf Wettin was born to Johann Adolph Wettin Duke Saxe Weissenfels (age 52) and Fredericka Saxe Coburg Altenburg (age 22) at Weißenfels, Burgenlandkreis, Saxony-Anhalt. Coefficient of inbreeding 3.94%.

On 08 Feb 1868 Walter Rothschild 2nd Baron Rothschild was born to Nathan Meyer 1st Baron Rothschild (age 27) and Emma Louise von Rothschild Baroness Rothschild (age 24). Coefficient of inbreeding 3.91%.

In 1302 John Stafford was born to William Stafford (age 24) and Isabel Stafford (age 29) at Bramshall, Uttoxeter. Coefficient of inbreeding 3.91%.

In 1873 Evelina Rothschild was born to Nathan Meyer 1st Baron Rothschild (age 32) and Emma Louise von Rothschild Baroness Rothschild (age 29). Coefficient of inbreeding 3.91%.

On 09 May 1877 Nathaniel Charles Rothschild was born to Nathan Meyer 1st Baron Rothschild (age 36) and Emma Louise von Rothschild Baroness Rothschild (age 33). Coefficient of inbreeding 3.91%.

On 07 Sep 1438 Marie Valois was born to Charles "Victorious" VII King France (age 35) and Marie Valois Anjou Queen Consort France (age 33). Coefficient of inbreeding 3.89%.

On 19 Sep 1426 John Valois was born to Charles "Victorious" VII King France (age 23) and Marie Valois Anjou Queen Consort France (age 21). Coefficient of inbreeding 3.89%.

On 07 Sep 1438 Joanna Valois was born to Charles "Victorious" VII King France (age 35) and Marie Valois Anjou Queen Consort France (age 33). Coefficient of inbreeding 3.89%.

On 12 Dec 1446 Charles Valois was born to Charles "Victorious" VII King France (age 43) and Marie Valois Anjou Queen Consort France (age 42). Coefficient of inbreeding 3.89%.

On 01 Dec 1443 Magdalena Valois Countess Foix was born to Charles "Victorious" VII King France (age 40) and Marie Valois Anjou Queen Consort France (age 39). Coefficient of inbreeding 3.89%.

In 1441 Isabella Valois was born to Charles "Victorious" VII King France (age 37) and Marie Valois Anjou Queen Consort France (age 36). Coefficient of inbreeding 3.89%.

On 03 Jul 1423 Louis "Father of the People" XI King France was born to Charles "Victorious" VII King France (age 20) and Marie Valois Anjou Queen Consort France (age 18). Coefficient of inbreeding 3.89%.

On 04 Feb 1436 Philip Valois was born to Charles "Victorious" VII King France (age 32) and Marie Valois Anjou Queen Consort France (age 31). Coefficient of inbreeding 3.89%.

On 04 May 1435 Joan Valois Duchess Bourbon was born to Charles "Victorious" VII King France (age 32) and Marie Valois Anjou Queen Consort France (age 30). Coefficient of inbreeding 3.89%.

On 23 Sep 1434 Yolande Valois Duchess Savoy was born to Charles "Victorious" VII King France (age 31) and Marie Valois Anjou Queen Consort France (age 29). Coefficient of inbreeding 3.89%.

In 1432 James Valois was born to Charles "Victorious" VII King France (age 28) and Marie Valois Anjou Queen Consort France (age 27). Coefficient of inbreeding 3.89%.

After 29 Aug 1428 Catherine Valois was born to Charles "Victorious" VII King France (age 25) and Marie Valois Anjou Queen Consort France (age 23). Coefficient of inbreeding 3.89%.

After 29 Aug 1428 Radegonde Valois was born to Charles "Victorious" VII King France (age 25) and Marie Valois Anjou Queen Consort France (age 23). Coefficient of inbreeding 3.89%.

In May 1437 Margaret Valois was born to Charles "Victorious" VII King France (age 34) and Marie Valois Anjou Queen Consort France (age 32). Coefficient of inbreeding 3.89%.

On 09 Aug 1914 Alastair Windsor 2nd Duke Connaught and Strathearn was born to Prince Arthur of Connaught (age 31) and Princess Alexandra Duff Duchess Fife (age 23) at 54 Mount Street Grosvenor Square. He was baptised on 01 Sep 1914 at his parent's home. His godparents were his maternal great-uncle George V King United Kingdom (age 49), Alfonso XIII King Spain (age 28), his maternal great-grandmother Alexandra Glücksburg Queen Consort England (age 69), his grandfather Prince Arthur Windsor 1st Duke Connaught and Strathearn (age 64), his great-aunt Princess Louise Caroline Alberta Windsor Duchess Argyll (age 66) and his cousin Princess Mary Windsor Countess Harewood (age 17). He a great grandson of Queen Victoria of the United Kingdom. Coefficient of inbreeding 3.85%.

On 17 Nov 1293 King Philip "Fortunate" VI of France was born to Charles Valois I Count Valois (age 23) and Margaret Capet Countess Valois (age 20). Coefficient of inbreeding 3.85%.

In 1299 Catherine Valois was born to Charles Valois I Count Valois (age 28) and Margaret Capet Countess Valois (age 26). Coefficient of inbreeding 3.85%.

In 1292 Isabelle Valois Duchess Brittany was born to Charles Valois I Count Valois (age 21) and Margaret Capet Countess Valois (age 19). Coefficient of inbreeding 3.85%.

In 1297 Charles Valois Count Alençon was born to Charles Valois I Count Valois (age 26) and Margaret Capet Countess Valois (age 24). Coefficient of inbreeding 3.85%.

In 1295 Margaret Valois was born to Charles Valois I Count Valois (age 24) and Margaret Capet Countess Valois (age 22). Coefficient of inbreeding 3.85%.

Around 1294 Joan Valois Countess Zeeland Holland Avesnes and Hainault was born to Charles Valois I Count Valois (age 23) and Margaret Capet Countess Valois (age 21). Coefficient of inbreeding 3.85%.

On 31 Oct 1345 Ferdinand I King Portugal was born to Peter I King Portugal (age 25) and Constanza Manuel Queen Consort Castile (age 29). Coefficient of inbreeding 3.84%.

On 03 May 1509 John Trastámara was born to Ferdinand II King Aragon (age 57) and Germaine Foix Queen Consort Aragon (age 21). Coefficient of inbreeding 3.82%.

On 01 Jun 1300 Thomas of Brotherton 1st Earl Norfolk was born to King Edward "Longshanks" I of England (age 60) and Margaret of France Queen Consort England (age 21) at Brotherton [Map]. Coefficient of inbreeding 3.81%.

On 05 Aug 1301 Edmund of Woodstock 1st Earl Kent was born to King Edward "Longshanks" I of England (age 62) and Margaret of France Queen Consort England (age 22) at Woodstock Palace, Oxfordshire [Map]. Coefficient of inbreeding 3.81%.

On 20 Sep 1936 Johanna Hesse Darmstadt was born to Georg Donatus Hesse Darmstadt Grand Duke (age 29) and Cecilie Glücksburg Grand Duchess (age 25). She a great x 2 granddaughter of Queen Victoria of the United Kingdom. Coefficient of inbreeding 3.81%.

On 14 Apr 1933 Alexander Hesse Darmstadt was born to Georg Donatus Hesse Darmstadt Grand Duke (age 26) and Cecilie Glücksburg Grand Duchess (age 21). He a great x 2 grandson of Queen Victoria of the United Kingdom. Coefficient of inbreeding 3.81%.

On 16 Nov 1937 Stillborn son Hesse Darmstadt was born to Georg Donatus Hesse Darmstadt Grand Duke (age 31) and Cecilie Glücksburg Grand Duchess (age 26). He a great x 2 grandson of Queen Victoria of the United Kingdom. Coefficient of inbreeding 3.81%.

On 25 Oct 1931 Ludwig Hesse Darmstadt was born to Georg Donatus Hesse Darmstadt Grand Duke (age 24) and Cecilie Glücksburg Grand Duchess (age 20). He a great x 2 grandson of Queen Victoria of the United Kingdom. Coefficient of inbreeding 3.81%.

On 19 Jun 1566 King James I of England and Ireland and VI of Scotland was born to Henry "Lord Darnley" Stewart (age 20) and Mary Queen of Scots (age 23) at Edinburgh Castle [Map]. He a great x 2 grandson of King Henry VII of England and Ireland. Coefficient of inbreeding 3.67%.

On 25 Jun 1900 Louis Mountbatten 1st Earl Mountbatten of Burma was born to Prince Louis of Battenburg 1st Marquess Milford Haven (age 46) and Victoria Hesse Darmstadt Marchioness Milford Haven (age 37). He a great grandson of Queen Victoria of the United Kingdom. Coefficient of inbreeding 3.61%.

On 06 Nov 1892 George Mountbatten 2nd Marquess Milford Haven was born to Prince Louis of Battenburg 1st Marquess Milford Haven (age 38) and Victoria Hesse Darmstadt Marchioness Milford Haven (age 29). He a great grandson of Queen Victoria of the United Kingdom. Coefficient of inbreeding 3.61%.

On 25 Feb 1885 Princess Alice of Battenburg was born to Prince Louis of Battenburg 1st Marquess Milford Haven (age 30) and Victoria Hesse Darmstadt Marchioness Milford Haven (age 21) at Windsor Castle [Map]. She a great granddaughter of Queen Victoria of the United Kingdom. Coefficient of inbreeding 3.61%.

On 13 Jul 1889 Louise Mountbatten Queen Consort Sweden was born to Prince Louis of Battenburg 1st Marquess Milford Haven (age 35) and Victoria Hesse Darmstadt Marchioness Milford Haven (age 26). She a great granddaughter of Queen Victoria of the United Kingdom. Coefficient of inbreeding 3.61%.

In 1374 Eleanor of Alberquerque Queen Consort Aragon was born to Sancho Alfonso Ivrea (age 43) and Beatrice Burgundy (age 20). Coefficient of inbreeding 3.61%.

In 1328 Eleanor Burgundy Queen Consort Aragon was born to Alfonso "Brave" IV King Portugal (age 36) and Beatrice Ivrea Queen Consort Portugal (age 35). Coefficient of inbreeding 3.61%.

On 08 Apr 1320 Peter I King Portugal was born to Alfonso "Brave" IV King Portugal (age 29) and Beatrice Ivrea Queen Consort Portugal (age 27). Coefficient of inbreeding 3.61%.

In 1326 John Burgundy was born to Alfonso "Brave" IV King Portugal (age 34) and Beatrice Ivrea Queen Consort Portugal (age 33). Coefficient of inbreeding 3.61%.

On 12 Feb 1317 Denis Burgundy was born to Alfonso "Brave" IV King Portugal (age 26) and Beatrice Ivrea Queen Consort Portugal (age 24). Coefficient of inbreeding 3.61%.

In 1315 Alfonso Burgundy was born to Alfonso "Brave" IV King Portugal (age 23) and Beatrice Ivrea Queen Consort Portugal (age 22). Coefficient of inbreeding 3.61%.

In 1313 Maria Burgundy Queen Consort Castile was born to Alfonso "Brave" IV King Portugal (age 21) and Beatrice Ivrea Queen Consort Portugal (age 20). Coefficient of inbreeding 3.61%.

In 1307 Eleanor Ivrea Queen Consort Aragon was born to Ferdinand IV King Castile IV King Leon (age 21) and Constance Burgundy Queen Consort Castile Queen Consort Leon (age 16). Coefficient of inbreeding 3.60%.

On 13 Aug 1311 Alfonso "Avenger" XI King Castile was born to Ferdinand IV King Castile IV King Leon (age 25) and Constance Burgundy Queen Consort Castile Queen Consort Leon (age 21). Coefficient of inbreeding 3.60%.

In 1308 Constance Ivrea was born to Ferdinand IV King Castile IV King Leon (age 22) and Constance Burgundy Queen Consort Castile Queen Consort Leon (age 17). Coefficient of inbreeding 3.60%.

On 09 Feb 1323 Margaret Brabant Countess Nevers and Flanders was born to John Brabant III Duke Brabant (age 23) and Marie Évreux Duchess of Brabant (age 20). She a great granddaughter of King Edward "Longshanks" I of England. Coefficient of inbreeding 3.60%.

In 1322 Joanna Reginar Duchess Brabant was born to John Brabant III Duke Brabant (age 21) and Marie Évreux Duchess of Brabant (age 19). She a great granddaughter of King Edward "Longshanks" I of England. Coefficient of inbreeding 3.60%.

In 1327 John of Brabant was born to John Brabant III Duke Brabant (age 26) and Marie Évreux Duchess of Brabant (age 24). He a great grandson of King Edward "Longshanks" I of England. Coefficient of inbreeding 3.60%.

In 1325 Marie of Brabant Duchess of Guelders was born to John Brabant III Duke Brabant (age 24) and Marie Évreux Duchess of Brabant (age 22). She a great granddaughter of King Edward "Longshanks" I of England. Coefficient of inbreeding 3.60%.

Catherine Valois was born to King Charles V of France and Joanna Bourbon Queen Consort France. Coefficient of inbreeding 3.59%.

On 03 Dec 1368 Charles "Beloved Mad" VI King France was born to King Charles V of France (age 30) and Joanna Bourbon Queen Consort France (age 30). Coefficient of inbreeding 3.59%.

On 13 Mar 1372 Louis Valois Duke Touraine I Duke Orléans was born to King Charles V of France (age 33) and Joanna Bourbon Queen Consort France (age 34). Coefficient of inbreeding 3.59%.

In 1859 Richard James Graham 4th Baronet was born to Frederick Ulric Graham 3rd Baronet (age 39) and Jane Hermione Seymour Lady Graham (age 26). Coefficient of inbreeding 3.57%.

On 23 Jun 1857 Sibyl Marcia Graham Baroness Houghton was born to Frederick Ulric Graham 3rd Baronet (age 37) and Jane Hermione Seymour Lady Graham (age 25). Coefficient of inbreeding 3.57%.

On 10 Sep 1854 Violet Hermione Graham Duchess Montrose was born to Frederick Ulric Graham 3rd Baronet (age 34) and Jane Hermione Seymour Lady Graham (age 22). Coefficient of inbreeding 3.57%.

On 05 Aug 1853 Margaret Francis Graham Countess Verulam was born to Frederick Ulric Graham 3rd Baronet (age 33) and Jane Hermione Seymour Lady Graham (age 21). Coefficient of inbreeding 3.57%.

Hilda Georgina Graham Baroness Wittenham was born to Frederick Ulric Graham 3rd Baronet and Jane Hermione Seymour Lady Graham. Coefficient of inbreeding 3.57%.

In 1864 James Reginald Graham was born to Frederick Ulric Graham 3rd Baronet (age 44) and Jane Hermione Seymour Lady Graham (age 31). Coefficient of inbreeding 3.57%.

On 31 Jul 1686 Charles Bourbon Duke Berry Duke Alençon Duke Angoulême was born to Louis "Le Grand Dauphin" Bourbon Duke Burgundy (age 24) and Maria Anna Victoria Wittelsbach Duchess Burgundy (age 25). Coefficient of inbreeding 3.57%.

On 16 Aug 1682 Louis Bourbon Duke Burgundy was born to Louis "Le Grand Dauphin" Bourbon Duke Burgundy (age 20) and Maria Anna Victoria Wittelsbach Duchess Burgundy (age 21). Coefficient of inbreeding 3.57%.

On 19 Dec 1683 Philippe V King Spain was born to Louis "Le Grand Dauphin" Bourbon Duke Burgundy (age 22) and Maria Anna Victoria Wittelsbach Duchess Burgundy (age 23) at Palace of Versailles, Versailles. Coefficient of inbreeding 3.57%.

In 1199 Ferdinand III King Castile III King Leon was born to Alfonso IX King Leon (age 27) and Berengaria Ivrea I Queen Castile (age 20). He a great grandson of King Henry "Curtmantle" II of England. Coefficient of inbreeding 3.56%.

In 1204 Beregaria Ivrea was born to Alfonso IX King Leon (age 32) and Berengaria Ivrea I Queen Castile (age 25). She a great granddaughter of King Henry "Curtmantle" II of England. Coefficient of inbreeding 3.56%.

In 1467 Philippa Egmont Duchess of Bar Duchess Lorraine was born to Adolf Egmont 2nd Duke Guelders (age 28) and Catherine Bourbon Duchess Guelders (age 27). Coefficient of inbreeding 3.50%.

In 1467 Charles Egmont 3rd Duchess Guelders was born to Adolf Egmont 2nd Duke Guelders (age 28) and Catherine Bourbon Duchess Guelders (age 27). Coefficient of inbreeding 3.50%.

In 1342 Isabelle Valois was born to Charles Valois Count Alençon (age 45) and Maria de la Cerda Y Lara Countess Alençon (age 23). Coefficient of inbreeding 3.50%.

In 1340 Peter Valois II Count Alençon was born to Charles Valois Count Alençon (age 43) and Maria de la Cerda Y Lara Countess Alençon (age 21). Coefficient of inbreeding 3.50%.

In 1339 Cardinal Philippe Valois was born to Charles Valois Count Alençon (age 42) and Maria de la Cerda Y Lara Countess Alençon (age 20). Coefficient of inbreeding 3.50%.

In 1337 Charles Valois Archbishop Lyons was born to Charles Valois Count Alençon (age 40) and Maria de la Cerda Y Lara Countess Alençon (age 18). Coefficient of inbreeding 3.50%.

In 1344 Robert Valois was born to Charles Valois Count Alençon (age 47) and Maria de la Cerda Y Lara Countess Alençon (age 25). Coefficient of inbreeding 3.50%.

On 07 Aug 1420 Margaret Savoy was born to Amadeus Savoy VIII Count Savoy (age 36) and Mary Valois Countess Savoy (age 33). Coefficient of inbreeding 3.44%.

On 24 Feb 1413 Louis Savoy I Count Savoy was born to Amadeus Savoy VIII Count Savoy (age 29) and Mary Valois Countess Savoy (age 26). Coefficient of inbreeding 3.44%.

In 1417 Philip Savoy was born to Amadeus Savoy VIII Count Savoy (age 33) and Mary Valois Countess Savoy (age 30). Coefficient of inbreeding 3.44%.

In Sep 1415 Bonne Savoy was born to Amadeus Savoy VIII Count Savoy (age 31) and Mary Valois Countess Savoy (age 29). Coefficient of inbreeding 3.44%.

On 26 Mar 1412 Amadeus Savoy was born to Amadeus Savoy VIII Count Savoy (age 28) and Mary Valois Countess Savoy (age 25). Coefficient of inbreeding 3.44%.

On 13 May 1405 Margaret Savoy was born to Amadeus Savoy VIII Count Savoy (age 21) and Mary Valois Countess Savoy (age 18). Coefficient of inbreeding 3.44%.

In Sep 1407 Anthony Savoy was born to Amadeus Savoy VIII Count Savoy (age 23) and Mary Valois Countess Savoy (age 21). Coefficient of inbreeding 3.44%.

In 1408 Anthony Savoy was born to Amadeus Savoy VIII Count Savoy (age 24) and Mary Valois Countess Savoy (age 21). Coefficient of inbreeding 3.44%.

In Jan 1411 Marie Savoy of was born to Amadeus Savoy VIII Count Savoy (age 27) and Mary Valois Countess Savoy (age 24). Coefficient of inbreeding 3.44%.

In 1675 Mary Drummond Countess Marischal was born to James Drummond 1st Duke Perth (age 27) and Jean Douglas (age 32). Coefficient of inbreeding 3.43%.

Around 1674 James Drummond 2nd Duke Perth was born to James Drummond 1st Duke Perth (age 26) and Jean Douglas (age 31). Coefficient of inbreeding 3.43%.

On 29 Nov 1422 Thomas Percy 1st Baron Egremont was born to Henry Percy 2nd Earl of Northumberland (age 29) and Eleanor Neville Countess Northumberland (age 25) at Leconfield. He a great x 2 grandson of King Edward III of England. Coefficient of inbreeding 3.42%.

Joan Percy was born to Henry Percy 2nd Earl of Northumberland and Eleanor Neville Countess Northumberland. She a great x 2 granddaughter of King Edward III of England. Coefficient of inbreeding 3.42%.

In 1436 Anne Percy was born to Henry Percy 2nd Earl of Northumberland (age 42) and Eleanor Neville Countess Northumberland (age 39). She a great x 2 granddaughter of King Edward III of England. Coefficient of inbreeding 3.42%.

On 07 Apr 1428 Bishop William Percy was born to Henry Percy 2nd Earl of Northumberland (age 35) and Eleanor Neville Countess Northumberland (age 31). He a great x 2 grandson of King Edward III of England. Coefficient of inbreeding 3.42%.

On 24 Jul 1424 George Percy was born to Henry Percy 2nd Earl of Northumberland (age 31) and Eleanor Neville Countess Northumberland (age 27). He a great x 2 grandson of King Edward III of England. Coefficient of inbreeding 3.42%.

In 1426 Richard Percy was born to Henry Percy 2nd Earl of Northumberland (age 32) and Eleanor Neville Countess Northumberland (age 29). He a great x 2 grandson of King Edward III of England. Coefficient of inbreeding 3.42%.

On 25 Jul 1421 Henry Percy 3rd Earl of Northumberland was born to Henry Percy 2nd Earl of Northumberland (age 28) and Eleanor Neville Countess Northumberland (age 24). He a great x 2 grandson of King Edward III of England. Coefficient of inbreeding 3.42%.

On 08 Jul 1418 John Percy was born to Henry Percy 2nd Earl of Northumberland (age 25) and Eleanor Neville Countess Northumberland (age 21). He a great x 2 grandson of King Edward III of England. Coefficient of inbreeding 3.42%.

On 28 May 1423 Katherine Percy was born to Henry Percy 2nd Earl of Northumberland (age 30) and Eleanor Neville Countess Northumberland (age 26). She a great x 2 granddaughter of King Edward III of England. Coefficient of inbreeding 3.42%.

In 1425 Ralph Percy was born to Henry Percy 2nd Earl of Northumberland (age 31) and Eleanor Neville Countess Northumberland (age 28). He a great x 2 grandson of King Edward III of England. Coefficient of inbreeding 3.42%.

On 27 Jan 1364 Edward Plantagenet was born to Edward "Black Prince" (age 33) and Joan "Fair Maid of Kent" Princess Wales (age 35) at Château d'Angoulême, Angoulême. He a grandson of King Edward III of England. Coefficient of inbreeding 3.42%.

On 06 Jan 1367 King Richard II of England was born to Edward "Black Prince" (age 36) and Joan "Fair Maid of Kent" Princess Wales (age 38) at Bordeaux [Map]. He became the Heir to the Throne of England. He a grandson of King Edward III of England. Coefficient of inbreeding 3.42%.

Around 1518 Margaret Stewart was born illegitimately to Bishop Alexander Stewart (age 41) and Margaret Stewart (age 21). Coefficient of inbreeding 3.41%.

In 1479 Jaime I Duke of Braganza was born to Fernando II Duke of Braganza (age 49) and Isabella Aviz (age 20). Coefficient of inbreeding 3.40%.

In 1481 Dinis of Graganza Count of Lemos was born to Fernando II Duke of Braganza (age 51) and Isabella Aviz (age 22). Coefficient of inbreeding 3.40%.

In 1461 Anne Holland was born to Henry Holland 3rd Duke Exeter (age 30) and Anne York Duchess Exeter (age 21). She a great x 3 granddaughter of King Edward III of England. Coefficient of inbreeding 3.38%.

Around 1191 Joan Plantagenet was born illegitimately to King John "Lackland" of England (age 24) and Adela Plantagenet. Coefficient of inbreeding 3.38%.

Around 1190 Richard Fitzroy was born illegitimately to King John "Lackland" of England (age 23) and Adela Plantagenet in Chilham Castle, Kent [Map]. Coefficient of inbreeding 3.38%.

On 26 Dec 1737 Prince Frederick Josias Saxe Coburg Saalfeld was born to Francis Josias Saxe Coburg Saalfeld Duke Saxe Coburg Saalfeld (age 40) and Duchess Anna Sophie Of Saxe-Coburg-Saalfeld (age 37) at Ehrenburg Palace, Coburg. Coefficient of inbreeding 3.37%.

On 24 Jun 1735 Frederica Caroline Saxe Coburg Saalfeld Margrave Brandenburg Ansbach was born to Francis Josias Saxe Coburg Saalfeld Duke Saxe Coburg Saalfeld (age 37) and Duchess Anna Sophie Of Saxe-Coburg-Saalfeld (age 34) at Coburg. Coefficient of inbreeding 3.37%.

On 11 May 1726 Johann Wilhelm Saxe Coburg Saalfeld was born to Francis Josias Saxe Coburg Saalfeld Duke Saxe Coburg Saalfeld (age 28) and Duchess Anna Sophie Of Saxe-Coburg-Saalfeld (age 25) at Coburg. Coefficient of inbreeding 3.37%.

On 25 Jan 1730 Christian Franz Saxe Coburg Saalfeld was born to Francis Josias Saxe Coburg Saalfeld Duke Saxe Coburg Saalfeld (age 32) and Duchess Anna Sophie Of Saxe-Coburg-Saalfeld (age 29) at Coburg. Coefficient of inbreeding 3.37%.

On 21 Aug 1733 Fredericka Magdalene Saxe Coburg Saalfeld was born to Francis Josias Saxe Coburg Saalfeld Duke Saxe Coburg Saalfeld (age 35) and Duchess Anna Sophie Of Saxe-Coburg-Saalfeld (age 32) at Coburg. Coefficient of inbreeding 3.37%.

On 03 Sep 1727 Anna Sophie Saxe Coburg Saalfeld was born to Francis Josias Saxe Coburg Saalfeld Duke Saxe Coburg Saalfeld (age 29) and Duchess Anna Sophie Of Saxe-Coburg-Saalfeld (age 26) at Coburg. Coefficient of inbreeding 3.37%.

On 08 Mar 1724 Ernest Frederick Saxe Coburg Saalfeld Duke Saxe Coburg Saalfeld was born to Francis Josias Saxe Coburg Saalfeld Duke Saxe Coburg Saalfeld (age 26) and Duchess Anna Sophie Of Saxe-Coburg-Saalfeld (age 23) at Saalfield. Coefficient of inbreeding 3.37%.

On 24 Sep 1731 Charlotte Sophie Saxe Coburg Saalfeld was born to Francis Josias Saxe Coburg Saalfeld Duke Saxe Coburg Saalfeld (age 33) and Duchess Anna Sophie Of Saxe-Coburg-Saalfeld (age 31) at Coburg. Coefficient of inbreeding 3.37%.

On 10 May 1491 Suzanne Bourbon Duchess Bourbon was born to Peter Bourbon II Duke Bourbon (age 52) and Anne Valois Duchess Bourbon (age 30). Coefficient of inbreeding 3.33%.

On 27 Jul 1905 Beatrice Helen Beckett was born to William Gervase Beckett 1st Baronet (age 39) and Mabel Theresa Duncombe (age 28). Coefficient of inbreeding 3.32%.

On 08 Nov 1896 Marion Frances Theresa Beckett was born to William Gervase Beckett 1st Baronet (age 30) and Mabel Theresa Duncombe (age 19). Coefficient of inbreeding 3.32%.

On 15 Dec 1900 Cynthia Maud Beckett was born to William Gervase Beckett 1st Baronet (age 34) and Mabel Theresa Duncombe (age 23). Coefficient of inbreeding 3.32%.

On 16 Sep 1907 Ann Prunella Beckett was born to William Gervase Beckett 1st Baronet (age 41) and Mabel Theresa Duncombe (age 30). Coefficient of inbreeding 3.32%.

On 19 Jul 1778 Thomas Foley was born to Andrew Foley (age 31) and Elizabeth Tomlinson (age 35). Coefficient of inbreeding 3.32%.

In 1792 Reverend William Andrew Foley was born to Andrew Foley (age 44) and Elizabeth Tomlinson (age 49). Coefficient of inbreeding 3.32%.

On 02 Oct 1882 William Waldegrave 10th Earl Waldegrave was born to William Frederick Waldegrave 9th Earl Waldegrave (age 31) and Mary Dorothea Palmer Countess Waldegrave (age 32). Coefficient of inbreeding 3.32%.

On 04 Sep 1454 Henry Stafford 2nd Duke of Buckingham was born to Humphrey Stafford (age 29) and Margaret Beaufort (age 17). He a great x 3 grandson of King Edward III of England. Coefficient of inbreeding 3.30%.

Around 1664 William Keith 9th Earl Marischal was born to George Keith 8th Earl Marischal (age 49) and Mary Hay Countess Marischal. Coefficient of inbreeding 3.29%.

On 14 Mar 1576 Bishop Eric of Lorraine was born to Nicholas of Lorraine Duke of Mercœur (age 51) and Catherine Romula Duchess of Lorraine (age 25) at Nancy. Coefficient of inbreeding 3.28%.

On 27 Mar 1575 Louise of Lorraine was born to Nicholas of Lorraine Duke of Mercœur (age 50) and Catherine Romula Duchess of Lorraine (age 24) at Nancy. She died young. Coefficient of inbreeding 3.28%.

On 24 Aug 1572 Bishop Antoine of Lorraine was born to Nicholas of Lorraine Duke of Mercœur (age 47) and Catherine Romula Duchess of Lorraine (age 21) at Nancy. Coefficient of inbreeding 3.28%.

On 24 Sep 1571 Christine of Lorraine was born to Nicholas of Lorraine Duke of Mercœur (age 46) and Catherine Romula Duchess of Lorraine (age 20) at Nancy. She died young. Coefficient of inbreeding 3.28%.

On 31 Jul 1570 Henri de Lorraine-Chaligny was born to Nicholas of Lorraine Duke of Mercœur (age 45) and Catherine Romula Duchess of Lorraine (age 19) at Nancy. Coefficient of inbreeding 3.28%.

In 1589 John Fleming 2nd Earl Wigtown was born to John Fleming 1st Earl Wigtown (age 22) and Lilias Graham Countess Graham. He was baptised on 05 Dec 1589 at Kincardine Castle - Ludovic Stewart 2nd Duke Lennox 1st Duke Richmond (age 14) and Francis Stewart 5th Earl Bothwell (age 26) attended. Coefficient of inbreeding 3.25%.

On 26 Sep 1785 Charles Powlett 2nd Baron Bayning was born to Charles Townshend 1st Baron Bayning (age 56) and Annabella Smith-Powlett (age 31). He was educated at Trinity College, Cambridge University [Map]. Coefficient of inbreeding 3.24%.

On 08 Jun 1797 Henry William Powlett 3rd Baron Bayning was born to Charles Townshend 1st Baron Bayning (age 67) and Annabella Smith-Powlett (age 42). He was educated at Eton College [Map] and St John's College, Cambridge University [Map]. Coefficient of inbreeding 3.24%.

On 31 May 1475 Unamed Trastámara was born to Ferdinand II King Aragon (age 23) and Isabella Queen Castile (age 24). He a great x 3 grandson of King Edward III of England. Coefficient of inbreeding 3.23%.

In 1470 Isabella Trastámara Queen Consort Portugal was born to Ferdinand II King Aragon (age 17) and Isabella Queen Castile (age 18). She a great x 3 granddaughter of King Edward III of England. Coefficient of inbreeding 3.23%.

In 1479 Joanna "The Mad" Trastámara Queen Castile was born to Ferdinand II King Aragon (age 26) and Isabella Queen Castile (age 27) in Toledo. She a great x 3 granddaughter of King Edward III of England. Coefficient of inbreeding 3.23%.

In 1482 Maria Trastámara Queen Consort Portugal was born to Ferdinand II King Aragon (age 29) and Isabella Queen Castile (age 30). She a great x 3 granddaughter of King Edward III of England. Coefficient of inbreeding 3.23%.

On 01 Jul 1482 Unamed Trastámara was born to Ferdinand II King Aragon (age 30) and Isabella Queen Castile (age 31). He a great x 3 grandson of King Edward III of England. Coefficient of inbreeding 3.23%.

On 30 Jun 1478 John Trastámara Prince Asturias was born to Ferdinand II King Aragon (age 26) and Isabella Queen Castile (age 27) at Seville. He a great x 3 grandson of King Edward III of England. Coefficient of inbreeding 3.23%.

On 29 Jan 1852 Frederick Oliver Robinson 2nd Marquess Ripon was born to George Frederick Samuel Robinson 1st Marquess Ripon (age 24) and Henrietta Anne Theodosia Vyner Marchioness Ripon (age 18). Coefficient of inbreeding 3.23%.

In 1340 John Lovell 4th Baron Lovel was born to John Lovell 3rd Baron Lovel (age 25) and Isabel Zouche (age 20). Coefficient of inbreeding 3.23%.

Around 1341 John Lovell 5th Baron Lovel, Baron Holand was born to John Lovell 3rd Baron Lovel (age 26) and Isabel Zouche (age 21). Coefficient of inbreeding 3.23%.

On 16 Jun 1834 Constance Leveson-Gower Duchess Westminster was born to George Sutherland Leveson-Gower 2nd Duke Sutherland (age 47) and Harriet Elizabeth Georgiana Howard Duchess Sutherland (age 28). Coefficient of inbreeding 3.22%.

Frederick George Leveson-Gower was born to George Sutherland Leveson-Gower 2nd Duke Sutherland and Harriet Elizabeth Georgiana Howard Duchess Sutherland. Coefficient of inbreeding 3.22%.

On 26 Jun 1830 Blanche Julia Leveson-Gower was born to George Sutherland Leveson-Gower 2nd Duke Sutherland (age 43) and Harriet Elizabeth Georgiana Howard Duchess Sutherland (age 24). Coefficient of inbreeding 3.22%.

On 19 Dec 1828 George Leveson-Gower 3rd Duke Sutherland was born to George Sutherland Leveson-Gower 2nd Duke Sutherland (age 42) and Harriet Elizabeth Georgiana Howard Duchess Sutherland (age 22). Coefficient of inbreeding 3.22%.

On 08 Aug 1825 Evelyn Leveson-Gower was born to George Sutherland Leveson-Gower 2nd Duke Sutherland (age 38) and Harriet Elizabeth Georgiana Howard Duchess Sutherland (age 19). Coefficient of inbreeding 3.22%.

On 15 Apr 1827 Caroline Leveson-Gower Duchess Leinster was born to George Sutherland Leveson-Gower 2nd Duke Sutherland (age 40) and Harriet Elizabeth Georgiana Howard Duchess Sutherland (age 20). Coefficient of inbreeding 3.22%.

On 16 May 1838 Victoria Leveson-Gower was born to George Sutherland Leveson-Gower 2nd Duke Sutherland (age 51) and Harriet Elizabeth Georgiana Howard Duchess Sutherland (age 31). Coefficient of inbreeding 3.22%.

On 21 Nov 1843 Albert Leveson-Gower was born to George Sutherland Leveson-Gower 2nd Duke Sutherland (age 57) and Harriet Elizabeth Georgiana Howard Duchess Sutherland (age 37). Coefficient of inbreeding 3.22%.

Elizabeth Georgiana Leveson-Gower Duchess Argyll was born to George Sutherland Leveson-Gower 2nd Duke Sutherland and Harriet Elizabeth Georgiana Howard Duchess Sutherland. Coefficient of inbreeding 3.22%.

On 03 Feb 1848 Alexandrina Leveson-Gower was born to George Sutherland Leveson-Gower 2nd Duke Sutherland (age 61) and Harriet Elizabeth Georgiana Howard Duchess Sutherland (age 41). Coefficient of inbreeding 3.22%.

On 02 Aug 1845 Ronald Leveson-Gower was born to George Sutherland Leveson-Gower 2nd Duke Sutherland (age 58) and Harriet Elizabeth Georgiana Howard Duchess Sutherland (age 39). Coefficient of inbreeding 3.22%.

Around 1147 Rhodri Aberffraw was born to Owain "Great" King Gwynedd (age 47) and Cristin ferch Goronwy Unknown Queen Consort Gwynedd (age 42). Coefficient of inbreeding 3.22%.

Around 1145 Dafydd ab Owain Aberffraw Prince Gwynedd was born to Owain "Great" King Gwynedd (age 45) and Cristin ferch Goronwy Unknown Queen Consort Gwynedd (age 40). Coefficient of inbreeding 3.22%.

In 246BC or 245BC Arsinoe III 246BC 204BC (age 1) was born to Ptolemy III Euergetes 280BC 222BC (age 34) and Berenice II. Coefficient of inbreeding 3.22%.

In May 244BC or Jun 244BC Ptolemy IV Philopator 244BC 204BC was born to Ptolemy III Euergetes 280BC 222BC (age 36) and Berenice II. Coefficient of inbreeding 3.22%.

Around 1654 Edward Fitzgerald Villiers was born to George Villiers 4th Viscount Grandison (age 37) and Mary Leigh Viscountess Grandison. Coefficient of inbreeding 3.22%.

Barbara Villiers was born to George Villiers 4th Viscount Grandison and Mary Leigh Viscountess Grandison. Coefficient of inbreeding 3.22%.

Audrey Villiers was born to George Villiers 4th Viscount Grandison and Mary Leigh Viscountess Grandison. Coefficient of inbreeding 3.22%.

On 13 Aug 1767 John Perceval 4th Earl Egmont was born to John Perceval 3rd Earl Egmont (age 29) and Isabella Powlett Countess Egmont. He a great x 3 grandson of King Charles II of England Scotland and Ireland. Coefficient of inbreeding 3.20%.

Before 1425 Margaret Stewart was born to John Stewart 2nd Earl Buchan and Elizabeth Douglas Countess Buchan and Orkney and Caithness. Coefficient of inbreeding 3.20%.

On 10 Apr 1480 Philibert "Handsome Good" Savoy 2nd Duke Savoy was born to Philip "Landless" Savoy II Duke Savoy (age 42) and Margaret Bourbon (age 41). Coefficient of inbreeding 3.19%.

On 11 Sep 1476 Louise of Savoy Countess Angoulême was born to Philip "Landless" Savoy II Duke Savoy (age 38) and Margaret Bourbon (age 37). Coefficient of inbreeding 3.19%.

On 27 May 1819 George V King Hanover was born to Ernest Augustus King Hanover (age 47) and Frederica Mecklenburg Strelitz Queen Consort Hanover (age 41). He a grandson of King George III of Great Britain and Ireland. Coefficient of inbreeding 3.19%.

In 1433 John Douglas was born to James "Gross" Douglas 7th Earl Douglas 1st Earl Avondale (age 62) and Beatrix Sinclair Countess Douglas and Avondale (age 35). Coefficient of inbreeding 3.19%.

Hugh Douglas 1st Earl Ormonde was born to James "Gross" Douglas 7th Earl Douglas 1st Earl Avondale and Beatrix Sinclair Countess Douglas and Avondale. Coefficient of inbreeding 3.19%.

Janet Douglas was born to James "Gross" Douglas 7th Earl Douglas 1st Earl Avondale and Beatrix Sinclair Countess Douglas and Avondale. Coefficient of inbreeding 3.19%.

In 1426 Archibald Douglas Earl Moray was born to James "Gross" Douglas 7th Earl Douglas 1st Earl Avondale (age 55) and Beatrix Sinclair Countess Douglas and Avondale (age 28). Coefficient of inbreeding 3.19%.

In 1426 James Douglas 9th Earl Douglas 3rd Earl Avondale was born to James "Gross" Douglas 7th Earl Douglas 1st Earl Avondale (age 55) and Beatrix Sinclair Countess Douglas and Avondale (age 28). Coefficient of inbreeding 3.19%.

Margaret Douglas was born to James "Gross" Douglas 7th Earl Douglas 1st Earl Avondale and Beatrix Sinclair Countess Douglas and Avondale. Coefficient of inbreeding 3.19%.

Beatrice Douglas Countess Erroll was born to James "Gross" Douglas 7th Earl Douglas 1st Earl Avondale and Beatrix Sinclair Countess Douglas and Avondale. Coefficient of inbreeding 3.19%.

In 1425 William Douglas 8th Earl Douglas 2nd Earl Avondale was born to James "Gross" Douglas 7th Earl Douglas 1st Earl Avondale (age 54) and Beatrix Sinclair Countess Douglas and Avondale (age 27). Coefficient of inbreeding 3.19%.

In 1420 Janet Douglas was born to James "Gross" Douglas 7th Earl Douglas 1st Earl Avondale (age 49) and Beatrix Sinclair Countess Douglas and Avondale (age 22) at Brechin. Coefficient of inbreeding 3.19%.

Elizabeth Douglas was born to James "Gross" Douglas 7th Earl Douglas 1st Earl Avondale and Beatrix Sinclair Countess Douglas and Avondale. Coefficient of inbreeding 3.19%.

In 1611 Gerald Fitzgerald 15th Earl of Kildare was born to Gerald Fitzgerald 14th Earl of Kildare and Elizabeth Nugent Countess Kildare. Coefficient of inbreeding 3.18%.

On 19 May 1663 Sophie Elisabeth Saxe Gotha was born to Ernest "The Pious" Saxe Gotha I Duke Saxe Gotha (age 61) and Elisabeth Sophie Saxe Altenburg Duchess Saxe Gotha (age 43) at Gotha. Coefficient of inbreeding 3.17%.

On 22 Aug 1658 John Ernest Saxe Coburg Saalfeld IV Duke Saxe Coburg Saalfeld was born to Ernest "The Pious" Saxe Gotha I Duke Saxe Gotha (age 56) and Elisabeth Sophie Saxe Altenburg Duchess Saxe Gotha (age 38). Coefficient of inbreeding 3.17%.

On 14 Feb 1645 Johanna Saxe Gotha was born to Ernest "The Pious" Saxe Gotha I Duke Saxe Gotha (age 43) and Elisabeth Sophie Saxe Altenburg Duchess Saxe Gotha (age 25) at Gotha. Coefficient of inbreeding 3.17%.

On 12 Jun 1655 Ernest Saxe Gotha was born to Ernest "The Pious" Saxe Gotha I Duke Saxe Gotha (age 53) and Elisabeth Sophie Saxe Altenburg Duchess Saxe Gotha (age 35) at Gotha. Coefficient of inbreeding 3.17%.

On 12 Feb 1654 Dorothea Saxe Gotha was born to Ernest "The Pious" Saxe Gotha I Duke Saxe Gotha (age 52) and Elisabeth Sophie Saxe Altenburg Duchess Saxe Gotha (age 34) at Gotha. Coefficient of inbreeding 3.17%.

On 05 Jan 1653 Christian Saxe Gotha Duke Saxe Eisenburg was born to Ernest "The Pious" Saxe Gotha I Duke Saxe Gotha (age 51) and Elisabeth Sophie Saxe Altenburg Duchess Saxe Gotha (age 33) at Gotha. Coefficient of inbreeding 3.17%.

On 19 Nov 1650 Henry Saxe Gotha Duke Saxe Römhild was born to Ernest "The Pious" Saxe Gotha I Duke Saxe Gotha (age 48) and Elisabeth Sophie Saxe Altenburg Duchess Saxe Gotha (age 31) at Gotha. Coefficient of inbreeding 3.17%.

On 10 Sep 1649 Bernhard Saxe Gotha I Duke Saxe Meiningen was born to Ernest "The Pious" Saxe Gotha I Duke Saxe Gotha (age 47) and Elisabeth Sophie Saxe Altenburg Duchess Saxe Gotha (age 29) at Gotha. Coefficient of inbreeding 3.17%.

On 24 May 1648 Albert Saxe Gotha Duke Saxe Coburg was born to Ernest "The Pious" Saxe Gotha I Duke Saxe Gotha (age 46) and Elisabeth Sophie Saxe Altenburg Duchess Saxe Gotha (age 28) at Gotha. Coefficient of inbreeding 3.17%.

On 21 Feb 1643 Sophie Saxe Gotha was born to Ernest "The Pious" Saxe Gotha I Duke Saxe Gotha (age 41) and Elisabeth Sophie Saxe Altenburg Duchess Saxe Gotha (age 23) at Gotha. Coefficient of inbreeding 3.17%.

On 23 Feb 1642 Christian Saxe Gotha was born to Ernest "The Pious" Saxe Gotha I Duke Saxe Gotha (age 40) and Elisabeth Sophie Saxe Altenburg Duchess Saxe Gotha (age 22) at Gotha. Coefficient of inbreeding 3.17%.

On 16 May 1641 Johann Ernest Saxe Gotha was born to Ernest "The Pious" Saxe Gotha I Duke Saxe Gotha (age 39) and Elisabeth Sophie Saxe Altenburg Duchess Saxe Gotha (age 21) at Gotha. Coefficient of inbreeding 3.17%.

On 18 Sep 1638 Johann Ernest Saxe Gotha was born to Ernest "The Pious" Saxe Gotha I Duke Saxe Gotha (age 36) and Elisabeth Sophie Saxe Altenburg Duchess Saxe Gotha (age 18) at Weimar. Coefficient of inbreeding 3.17%.

On 02 Sep 1660 Johanna Elisabeth Saxe Gotha was born to Ernest "The Pious" Saxe Gotha I Duke Saxe Gotha (age 58) and Elisabeth Sophie Saxe Altenburg Duchess Saxe Gotha (age 40) at Gotha. Coefficient of inbreeding 3.17%.

On 08 Jan 1640 Elisabeth Dorothea Saxe Gotha was born to Ernest "The Pious" Saxe Gotha I Duke Saxe Gotha (age 38) and Elisabeth Sophie Saxe Altenburg Duchess Saxe Gotha (age 20) at Coburg. Coefficient of inbreeding 3.17%.

On 01 Mar 1657 Johann Philip Saxe Gotha was born to Ernest "The Pious" Saxe Gotha I Duke Saxe Gotha (age 55) and Elisabeth Sophie Saxe Altenburg Duchess Saxe Gotha (age 37) at Gotha. Coefficient of inbreeding 3.17%.

On 15 Jul 1646 Frederick Saxe Coburg Altenburg I Duke Saxe Gotha Altenburg was born to Ernest "The Pious" Saxe Gotha I Duke Saxe Gotha (age 44) and Elisabeth Sophie Saxe Altenburg Duchess Saxe Gotha (age 26) at Gotha. Coefficient of inbreeding 3.17%.

On 16 Nov 1661 Johann Philip Saxe Gotha was born to Ernest "The Pious" Saxe Gotha I Duke Saxe Gotha (age 59) and Elisabeth Sophie Saxe Altenburg Duchess Saxe Gotha (age 42) at Gotha. Coefficient of inbreeding 3.17%.

Adelheid Cleves was born to Dietrich Cleves VII Count Cleves and Margaret Guelders Countess Cleves. Coefficient of inbreeding 3.17%.

In 1278 Otto Cleves Count Cleves was born to Dietrich Cleves VII Count Cleves (age 22) and Margaret Guelders Countess Cleves. Coefficient of inbreeding 3.17%.

In 1280 Catharine Cleves was born to Dietrich Cleves VII Count Cleves (age 24) and Margaret Guelders Countess Cleves. Coefficient of inbreeding 3.17%.

On 06 Mar 1704 John Ward 1st Viscount Dudley and Ward was born to William Ward (age 27) and Mary Grey. Coefficient of inbreeding 3.15%.

Around 1710 Reverend William aka Henry Ward was born to William Ward (age 33) and Mary Grey. Coefficient of inbreeding 3.15%.

After Jan 1712 Alexander Jardine 4th Baronet was born to John Jardine 3rd Baronet (age 29) and Catherine Lockhart Lady Jardine. Coefficient of inbreeding 3.14%.

In 1727 Diane Beauclerk Lennox was born illegitimately to Charles Beauclerk 2nd Duke St Albans (age 30) and Renee Lennox (age 18). She a great granddaughter of King Charles II of England Scotland and Ireland. Coefficient of inbreeding 3.14%.

On 10 Nov 1695 Louis Armand Bourbon Condé Conti II Prince Conti was born to François Louis "Le Grand Conti" Bourbon Condé Conti Prince Conti (age 31) and Marie Thérèse Bourbon Condé (age 29). He a great x 3 grandson of King James I of England and Ireland and VI of Scotland. Coefficient of inbreeding 3.14%.

On 18 Apr 1689 Marie Anne Bourbon Condé Conti was born to François Louis "Le Grand Conti" Bourbon Condé Conti Prince Conti (age 24) and Marie Thérèse Bourbon Condé (age 23). She a great x 3 granddaughter of King James I of England and Ireland and VI of Scotland. Coefficient of inbreeding 3.14%.

On 02 Nov 1696 Louise Adélaïde Bourbon Condé Conti was born to François Louis "Le Grand Conti" Bourbon Condé Conti Prince Conti (age 32) and Marie Thérèse Bourbon Condé (age 30). She a great x 3 granddaughter of King James I of England and Ireland and VI of Scotland. Coefficient of inbreeding 3.14%.

On 27 Jul 1703 Louis François Bourbon Condé Conti was born to François Louis "Le Grand Conti" Bourbon Condé Conti Prince Conti (age 39) and Marie Thérèse Bourbon Condé (age 37). He a great x 3 grandson of King James I of England and Ireland and VI of Scotland. Coefficient of inbreeding 3.14%.

On 01 Dec 1694 Prince Bourbon Condé Conti was born to François Louis "Le Grand Conti" Bourbon Condé Conti Prince Conti (age 30) and Marie Thérèse Bourbon Condé (age 28). He a great x 3 grandson of King James I of England and Ireland and VI of Scotland. Coefficient of inbreeding 3.14%.

On 18 Nov 1693 Unknown name Bourbon Condé Conti was born to François Louis "Le Grand Conti" Bourbon Condé Conti Prince Conti (age 29) and Marie Thérèse Bourbon Condé (age 27). He a great x 3 grandson of King James I of England and Ireland and VI of Scotland. Coefficient of inbreeding 3.14%.

On 19 Nov 1697 Mademoiselle d'Alais Bourbon Condé Conti was born to François Louis "Le Grand Conti" Bourbon Condé Conti Prince Conti (age 33) and Marie Thérèse Bourbon Condé (age 31). She a great x 3 granddaughter of King James I of England and Ireland and VI of Scotland. Coefficient of inbreeding 3.14%.

On 17 Aug 1684 Anne Lennard 16th Baroness Dacre Gilsland Baroness Teynham was born to Thomas Lennard 1st Earl of Sussex (age 30) and Anne Fitzroy Countess Sussex (age 23). She a granddaughter of King Charles II of England Scotland and Ireland. Coefficient of inbreeding 3.14%.

In 1683 Henry Lennard was born to Thomas Lennard 1st Earl of Sussex (age 28) and Anne Fitzroy Countess Sussex (age 21) at Herstmonceux. He a grandson of King Charles II of England Scotland and Ireland. Coefficient of inbreeding 3.14%.

On 12 Jul 1676 Barbara Lennard was born to Thomas Lennard 1st Earl of Sussex (age 22) and Anne Fitzroy Countess Sussex (age 15). She a granddaughter of King Charles II of England Scotland and Ireland. Coefficient of inbreeding 3.14%.

John Douglas 2nd Earl Morton was born to James Douglas 1st Earl Morton and Joan Stewart Countess Morton. He a great x 3 grandson of King Edward III of England. Coefficient of inbreeding 3.14%.

Janet Douglas Countess Bothwell was born to James Douglas 1st Earl Morton and Joan Stewart Countess Morton. She a great x 3 granddaughter of King Edward III of England. Coefficient of inbreeding 3.14%.

On 25 May 1682 Charles Lennard was born to Thomas Lennard 1st Earl of Sussex (age 28) and Anne Fitzroy Countess Sussex (age 21) at Windsor Castle [Map]. He a grandson of King Charles II of England Scotland and Ireland. Coefficient of inbreeding 3.14%.

James Douglas was born to James Douglas 1st Earl Morton and Joan Stewart Countess Morton. He a great x 3 grandson of King Edward III of England. Coefficient of inbreeding 3.14%.

Elizabeth Douglas was born to James Douglas 1st Earl Morton and Joan Stewart Countess Morton. She a great x 3 granddaughter of King Edward III of England. Coefficient of inbreeding 3.14%.

Elizabeth Rich was born to Robert Rich 5th Earl Warwick 2nd Earl Holland and Anne Montagu Countess Warwick and Holland. Coefficient of inbreeding 3.14%.

Around 1673 Edward Rich 6th Earl Warwick 3rd Earl Holland was born to Robert Rich 5th Earl Warwick 2nd Earl Holland (age 54) and Anne Montagu Countess Warwick and Holland. Coefficient of inbreeding 3.14%.

On 01 Oct 1798 James Wentworth Buller was born to James Buller (age 32) and Ann Buller (age 28). Coefficient of inbreeding 3.14%.

In Feb 1804 Hester Eleanora Buller was born to James Buller (age 37) and Ann Buller (age 34). Coefficient of inbreeding 3.14%.

In 1796 Frances Susanna Buller was born to James Buller (age 29) and Ann Buller (age 26). Coefficient of inbreeding 3.14%.

Mary Manners Sutton was born to Archbishop Charles Manners-Sutton and Mary Thoroton. Coefficient of inbreeding 3.13%.

On 09 Jan 1780 Charles Manners-Sutton 1st Viscount Canterbury was born to Archbishop Charles Manners-Sutton (age 24) and Mary Thoroton. Coefficient of inbreeding 3.13%.

In 1905 Mary or Rachel Fitzalan was born to Henry Fitzalan Howard 15th Duke of Norfolk (age 57) and Gwendolen Constable-Maxwell Duchess Norfolk (age 27). Coefficient of inbreeding 3.13%.

In 1912 Katherine Mary Fitzalan was born to Henry Fitzalan Howard 15th Duke of Norfolk (age 64) and Gwendolen Constable-Maxwell Duchess Norfolk (age 34). Coefficient of inbreeding 3.13%.

In 1914 Winefride Alice Fitzalan was born to Henry Fitzalan Howard 15th Duke of Norfolk (age 66) and Gwendolen Constable-Maxwell Duchess Norfolk (age 36). Coefficient of inbreeding 3.13%.

On 30 May 1908 Bernard Fitzalan 16th Duke of Norfolk was born to Henry Fitzalan Howard 15th Duke of Norfolk (age 60) and Gwendolen Constable-Maxwell Duchess Norfolk (age 31). Coefficient of inbreeding 3.13%.

On 12 Nov 1804 Henry Benedict Arundell 11th Baron Arundel was born to James Everard Arundell 9th Baron Arundel (age 41) and Mary Christina Arundell Baroness Arundel Wardour. Coefficient of inbreeding 3.13%.

On 03 Nov 1785 James Everard Arundell 10th Baron Arundel was born to James Everard Arundell 9th Baron Arundel (age 22) and Mary Christina Arundell Baroness Arundel Wardour at Clifford Street. Coefficient of inbreeding 3.13%.

Charles Obrien was born to William O'Brien 3rd Earl Inchiquin and Mary Villiers Countess Inchiquin. Coefficient of inbreeding 3.13%.

In 1701 James O'Brien was born to William O'Brien 3rd Earl Inchiquin (age 39) and Mary Villiers Countess Inchiquin. Coefficient of inbreeding 3.13%.

Margaret Peyton was born to Sewster Peyton 2nd Baronet and Anne Dashwood Lady Peyton. Coefficient of inbreeding 3.13%.

Mary O'Brien Countess Kildare was born to William O'Brien 3rd Earl Inchiquin and Mary Villiers Countess Inchiquin. Coefficient of inbreeding 3.13%.

Anne Peyton was born to Sewster Peyton 2nd Baronet and Anne Dashwood Lady Peyton. Coefficient of inbreeding 3.13%.

In 1689 Donal O'Brien was born to William O'Brien 3rd Earl Inchiquin (age 27) and Mary Villiers Countess Inchiquin. Coefficient of inbreeding 3.13%.

In 1700 William O'Brien 4th Earl Inchiquin was born to William O'Brien 3rd Earl Inchiquin (age 38) and Mary Villiers Countess Inchiquin. Coefficient of inbreeding 3.13%.

Thomas Peyton 3rd Baronet was born to Sewster Peyton 2nd Baronet and Anne Dashwood Lady Peyton. Coefficient of inbreeding 3.13%.

On 05 Sep 1829 Evelyn Elizabeth Vernon was born to Robert Smith aka (age 29) and Emma Mary Fitzpatrick Baroness Lyveden. Coefficient of inbreeding 3.13%.

On 27 Jul 1828 Courtenay John Vernon was born to Robert Smith aka (age 28) and Emma Mary Fitzpatrick Baroness Lyveden. Coefficient of inbreeding 3.13%.

On 09 Nov 1825 Gowran Charles Vernon was born to Robert Smith aka (age 25) and Emma Mary Fitzpatrick Baroness Lyveden. Coefficient of inbreeding 3.13%.

On 27 Apr 1824 Fitzpatrick Vernon 2nd Baron Lyveden was born to Robert Smith aka (age 24) and Emma Mary Fitzpatrick Baroness Lyveden. Coefficient of inbreeding 3.13%.

On 06 Mar 1835 Greville Richard Vernon was born to Robert Smith aka (age 35) and Emma Mary Fitzpatrick Baroness Lyveden. Coefficient of inbreeding 3.13%.

Margaret Henrietta Maria Grey was born to George Harry Grey 8th Baron Grey of Groby and Katherine Charteris Baroness Grey Groby Coefficient of inbreeding 3.13%.

On 07 Jan 1827 George Grey 7th Earl Stamford 3rd Earl Warrington was born to George Harry Grey 8th Baron Grey of Groby (age 24) and Katherine Charteris Baroness Grey Groby (age 26) at Enville Hall, Staffordshire. Coefficient of inbreeding 3.13%.

Before 17 Oct 1712 Henrietta Nassau 2nd Countess Cowper was born to Henry Nassau 1st Earl Grantham (age 39) and Henrietta Butler Countess Grantham. On 17 Oct 1712 Henrietta Nassau 2nd Countess Cowper was baptised. Coefficient of inbreeding 3.13%.

On 23 Apr 1740 John Ker 3rd Duke Roxburghe was born to Robert Ker 2nd Duke Roxburghe (age 31) and Essex Mostyn Duchess Roxburghe. Coefficient of inbreeding 3.13%.

On 21 Feb 1831 Edward Henry Petre was born to Henry William Petre (age 39) and Adeliza Maria Howard. Coefficient of inbreeding 3.13%.

Around 1534 James "Lord Bothwell" Hepburn 1st Duke Orkney was born to Patrick Hepburn 3rd Earl Bothwell (age 22) and Agnes Sinclair Countess Bothwell. Coefficient of inbreeding 3.13%.

Jean Hepburn was born to Patrick Hepburn 3rd Earl Bothwell and Agnes Sinclair Countess Bothwell at Crichton Castle. Coefficient of inbreeding 3.13%.

On 20 Jun 1880 Stewkley Shuckburgh 10th Baronet was born to George Thomas Shuckburgh 9th Baronet (age 50) and Ida Florence Geraldine Robertson Lady Schuckburgh. Coefficient of inbreeding 3.13%.

On 07 Sep 1885 Leonard Vyvyan Heathcote 10th Baronet was born to Reverend Gilbert Vyvyan Heathcote (age 55) and Mary Henrietta Perceval. Coefficient of inbreeding 3.13%.

On 28 Feb 1882 Gerald Shuckburgh 11th Baronet was born to George Thomas Shuckburgh 9th Baronet (age 52) and Ida Florence Geraldine Robertson Lady Schuckburgh. Coefficient of inbreeding 3.13%.

In 1856 Flora Augusta Chichester was born to Harry Chichester 2nd Baron Templemore (age 34) and Laura Caroline Jane Paget Baroness Templemore (age 35). Coefficient of inbreeding 3.13%.

In 1854 Arthur Henry Chichester Chichester 3rd Baron Templemore was born to Harry Chichester 2nd Baron Templemore (age 32) and Laura Caroline Jane Paget Baroness Templemore (age 33). Coefficient of inbreeding 3.13%.

After 1634 Thomas Luttrel of Luttrellstown was born to Simon Luttrell (age 34) and Mary Preston (age 20). Coefficient of inbreeding 3.13%.

Robert Luttrell was born to Simon Luttrell and Mary Preston. Coefficient of inbreeding 3.13%.

Charlotte Elizabeth Digby was born to Colonel Stephen Digby and Lucy Fox-Strangways. Coefficient of inbreeding 3.13%.

Isabella Mararetta Elizabeth Walpole was born to Spencer Horatio Walpole and Isabella Perceval. Coefficient of inbreeding 3.13%.

On 04 Aug 1842 Benjamin Lee Guinness was born to Benjamin Lee Guiness 1st Baronet (age 43) and Elizabeth Guiness (age 28) at Clontarf, Dublin. Coefficient of inbreeding 3.12%.

On 10 Nov 1847 Edward Guiness 1st Earl Iveagh was born to Benjamin Lee Guiness 1st Baronet (age 49) and Elizabeth Guiness (age 33) at Clontarf, Dublin. Coefficient of inbreeding 3.12%.

John Vesey 1st Baron Knapton was born to Bishop Thomas Vesey 1st Baronet and Mary Muschamp. Coefficient of inbreeding 3.12%.

On 29 Aug 1802 Mathew Wilson 1st Baronet was born to Mathew Wilson of Eshton Hall (age 30) and Margaret Clive Wilson (age 38). Coefficient of inbreeding 3.12%.

On 13 Nov 1856 Brooke Boothby 10th Baronet was born to Reverend Brooke William Boothby 9th Baronet (age 47) and Martha Serena Boothby. Coefficient of inbreeding 3.12%.

On 22 Jun 1858 Charles Francis Boothby 11th Baronet was born to Reverend Brooke William Boothby 9th Baronet (age 49) and Martha Serena Boothby. Coefficient of inbreeding 3.12%.

On 01 Nov 1840 Arthur Guiness 1st Baron Ardilaun was born to Benjamin Lee Guiness 1st Baronet (age 42) and Elizabeth Guiness (age 26) at St Anne's, Raheny. Coefficient of inbreeding 3.12%.

On 06 Feb 1866 Seymour William Brooke Boothby 13th Baronet was born to Reverend Brooke William Boothby 9th Baronet and Martha Serena Boothby. Coefficient of inbreeding 3.12%.

On 06 Dec 1828 William Cayley Worsley 2nd Baronet was born to William Worsley 1st Baronet (age 36) and Sarah Philadephia Cayley Baroness Worlsley (age 26). Coefficient of inbreeding 3.12%.

In 1408 Cecily Boleyn was born to Geoffrey Boleyn (age 28) and Alice Bracton (age 23). Coefficient of inbreeding 3.12%.

In 1406 Geoffrey Boleyn was born to Geoffrey Boleyn (age 26) and Alice Bracton (age 21). Coefficient of inbreeding 3.12%.

Around 1400 Thomas Boleyn was born to Geoffrey Boleyn (age 20) and Alice Bracton (age 15). Coefficient of inbreeding 3.12%.

In 1414 John Boleyn was born to Geoffrey Boleyn (age 34) and Alice Bracton (age 29). Coefficient of inbreeding 3.12%.

On 08 Dec 1863 Herbert Cecil Boothby 12th Baronet was born to Reverend Brooke William Boothby 9th Baronet (age 54) and Martha Serena Boothby. Coefficient of inbreeding 3.12%.

On 27 Nov 1948 Kenelm Charles Pepys 8th Earl of Cottenham was born to John Digby Pepys 7th Earl of Cottenham (age 41) and Angela Neville Countess Cottenham (age 38). Coefficient of inbreeding 3.12%.

Around 1797 Kenelm Henry Digby was born to Very Reverend William John Digby (age 67) and Mary Digby. Coefficient of inbreeding 3.12%.

On 20 May 1808 Frances Bacon was born to Edmund Bacon 10th and 9th Baronet (age 28) and Mary Anne Elizabeth Bacon (age 30). Coefficient of inbreeding 3.12%.

On 21 Sep 1788 Princess Wilhelmine Baden was born to Prince Charles Louis of Baden (age 33) and Princess Amalie of Hesse-Darmstadt (age 34). Coefficient of inbreeding 3.12%.

In 1839 Anne Lee Guiness Baroness Plunket was born to Benjamin Lee Guiness 1st Baronet (age 40) and Elizabeth Guiness (age 25) at St Anne's, Raheny. Coefficient of inbreeding 3.12%.

On 24 Mar 1650 Bishop Jonathan Trelawny 3rd Baronet was born to Jonathan Trelawny 2nd Baronet (age 27) and Mary Seymour (age 31). Coefficient of inbreeding 3.12%.

On 08 May 1821 William Henry Vanderbilt was born to Cornelius "Commodore" Vanderbilt (age 26) and Sophia Johnson at New Brunswick New Jersey. Coefficient of inbreeding 3.12%.

Around 1653 Charles Trelawny was born to Jonathan Trelawny 2nd Baronet (age 30) and Mary Seymour (age 34). Coefficient of inbreeding 3.12%.

Around 1658 Brigadier-General Henry Trelawny was born to Jonathan Trelawny 2nd Baronet (age 35) and Mary Seymour (age 39). Coefficient of inbreeding 3.12%.

On 03 Sep 1835 Bridges Powell Henniker 4th Baronet was born to Augustus Brydges Henniker 3rd Baronet (age 40) and Elizabeth Henniker-Major Lady Henniker. Coefficient of inbreeding 3.12%.

On 09 Dec 1758 Richard Colt Hoare 2nd Baronet was born to Richard Hoare 1st Baronet (age 23) and Anne Hoare (age 21). Coefficient of inbreeding 3.12%.

On 17 Jul 1804 Robert King 6th Earl Kingston was born to Robert King 1st Viscount Lorton (age 30) and Frances Parsons (age 29). Coefficient of inbreeding 3.12%.

On 17 Feb 1706 Robert Hampden-Trevor 1st Viscount Hampden was born to Thomas Trevor 1st Baron Trevor Bromham (age 47) and Anne Welden (age 36). Coefficient of inbreeding 3.12%.

Frances Mary Twysden was born to Henry Duncan Twysden and Mary Twysden. Coefficient of inbreeding 3.12%.

Around 1273 Isabel Stafford was born to Robert Stafford (age 20) and Gundreda Stafford (age 21) at Anslow, Burton upon Trent. Coefficient of inbreeding 3.12%.

On 20 Oct 1831 Thomas Frederick Charles Vernon Wentworth was born to Frederick William Thomas Vernon Wentworth (age 36) and Augusta Frederica Brudenell (age 36). Coefficient of inbreeding 3.12%.

Henrietta Frances Elizabeth Vernon Wentworth was born to Frederick William Thomas Vernon Wentworth and Augusta Frederica Brudenell. Coefficient of inbreeding 3.12%.

On 13 Sep 1824 Charlotte Lucy Beatrix Egerton was born to Wilbraham Egerton (age 43) and Elizabeth Sykes (age 46). Coefficient of inbreeding 3.12%.

On 30 Mar 1859 Almeric Edmund Frederic Rich 5th Baronet was born to Frederick Dampier Rich (age 41) and Jacinthia Catherine Hesketh Lethbridge (age 39). Coefficient of inbreeding 3.12%.

On 12 May 1818 Commander Charles Randle Egerton was born to Wilbraham Egerton (age 36) and Elizabeth Sykes (age 40). Coefficient of inbreeding 3.12%.

On 05 Oct 1827 William Ridley Charles Cooke 9th Baronet was born to William Bryan Cooke 8th Baronet (age 45) and Isabella Cecilia Middleton Lady Cooke. Coefficient of inbreeding 3.12%.

On 01 Aug 1829 Charles Edward Cooke was born to William Bryan Cooke 8th Baronet (age 47) and Isabella Cecilia Middleton Lady Cooke. Coefficient of inbreeding 3.12%.

On 19 Jul 1843 Emma Lucy Madox Brown was born to Ford Madox Brown (age 22) and Elizabeth Bromley (age 24) at Paris [Map]. Coefficient of inbreeding 3.12%.

On 28 Mar 1757 Theophilus Biddulph 5th Baronet was born to Theophilus Biddulph 4th Baronet (age 37) and Jane Biddulph Lady Biddulph (age 30). Coefficient of inbreeding 3.12%.

On 22 Mar 1857 Lionel Eldred Pottinger Smith-Gordon 3rd Baronet was born to Lionel Eldred Smith-Gordon 2nd Baronet (age 23) and Fanny Pottinger Lady Smith (age 24). Coefficient of inbreeding 3.12%.

On 27 Jul 1816 Edward Christopher Egerton was born to Wilbraham Egerton (age 34) and Elizabeth Sykes (age 38). Coefficient of inbreeding 3.12%.

In 1278 Johanna Stafford was born to Robert Stafford (age 25) and Gundreda Stafford (age 26) at Egginton [Map]. Coefficient of inbreeding 3.12%.

On 16 Nov 1809 Reverend Thomas Egerton was born to Wilbraham Egerton (age 28) and Elizabeth Sykes (age 31). Coefficient of inbreeding 3.12%.

On 30 Dec 1806 Wilbraham Egerton 1st Baron Egerton Tatton was born to Wilbraham Egerton (age 25) and Elizabeth Sykes (age 29). Coefficient of inbreeding 3.12%.

Jean Elphinstone was born to Alexander Elphinstone 6th Lord Elphinstone and Lilias Elphinstone. Coefficient of inbreeding 3.12%.

In 1647 Alexander Elphinstone 7th Lord Elphinstone was born to Alexander Elphinstone 6th Lord Elphinstone (age 44) and Lilias Elphinstone (age 33). Coefficient of inbreeding 3.12%.

On 18 Sep 1864 Charles Buckworth-Herne-Soame 10th Baronet was born to Charles Buckworth-Herne-Soame 9th Baronet (age 34) and Mary Proctor Lady Buckworth-Herne-Soame. Coefficient of inbreeding 3.12%.

On 17 Sep 1702 Charles Tryon was born to Charles Tryon (age 22) and Jane Savile (age 26). Coefficient of inbreeding 3.12%.

On 30 Jun 1659 Edward Reade 2nd Baronet was born to Compton Reade 1st Baronet (age 34) and Mary Cornwall Lady Reade (age 29). He was baptised on 06 Jul 1599. Coefficient of inbreeding 3.12%.

Before 05 Oct 1711 Paulet St John 8th Baron St John was born to Andrew St John 4th Baronet (age 26) and Anne James. Coefficient of inbreeding 3.12%.

On 11 Dec 1807 Reverend Ernest Adolphus Waller was born to Jonathan Wathen Phipps aka Waller 1st Baronet (age 38) and Elizabeth Slack (age 33). Coefficient of inbreeding 3.12%.

On 20 Oct 1674 Henry Seymour 1st Baronet was born to Henry Seymour (age 62) and Elizabeth Killigrew (age 61). Coefficient of inbreeding 3.12%.

On 21 Oct 1729 Henry Seymour was born to Francis Seymour (age 32) and Elizabeth Popham Viscountess Hinchingbrooke (age 36). Coefficient of inbreeding 3.12%.

On 24 Jun 1805 Thomas Wathen Phipps Waller 2nd Baronet was born to Jonathan Wathen Phipps aka Waller 1st Baronet (age 35) and Elizabeth Slack (age 31). Coefficient of inbreeding 3.12%.

On 30 May 1653 Claudia Felicitas of Holy Roman Empress was born to Ferdinand Charles Habsburg Spain (age 25) and Anna de Medici (age 36). Coefficient of inbreeding 3.12%.

In 1552 Philippe Carteret 2nd Seigneur Sark was born to Helier Carteret (age 19) and Margaret Carteret (age 43) at St Ouen Jersey. Coefficient of inbreeding 3.12%.

Around 1410 Catherine Seton was born to William Seton Master of Seton (age 20) and Janet Dunbar (age 20). Coefficient of inbreeding 3.12%.

Elizabeth Keith Lindsay was born to Alexander Lindsay 6th Earl Balcarres and Elizabeth Bradshaigh Dalrymple Countess Balcarres. Coefficient of inbreeding 3.12%.

On 24 Apr 1783 James Lindsay 7th Earl Balcarres 24th Earl of Crawford was born to Alexander Lindsay 6th Earl Balcarres (age 31) and Elizabeth Bradshaigh Dalrymple Countess Balcarres. Coefficient of inbreeding 3.12%.

In 1640 Christine Urquhart was born to Alexander Urquhart of Cromarty (age 27) and Jean Elphinstone. Coefficient of inbreeding 3.12%.

In 1566 William Carteret was born to Helier Carteret (age 33) and Margaret Carteret (age 57). Coefficient of inbreeding 3.12%.

Jimena Astur Leonese was born to Alfonso "Noble" V King Leon and Urraca Jiménez Queen Consort Leon. Coefficient of inbreeding 3.12%.

Mary Seymour was born to Francis Seymour and Elizabeth Popham Viscountess Hinchingbrooke. Coefficient of inbreeding 3.12%.

On 23 Apr 1815 William Howard was born to Kenneth Alexander Howard 1st Earl of Effingham (age 47) and Charlotte Primrose Countess Effingham (age 39). Coefficient of inbreeding 3.12%.

On 25 Jan 1809 Arabella Georgina Howard Baroness Northbrook was born to Kenneth Alexander Howard 1st Earl of Effingham (age 41) and Charlotte Primrose Countess Effingham (age 33). Coefficient of inbreeding 3.12%.

On 06 Dec 1807 Charles Howard was born to Kenneth Alexander Howard 1st Earl of Effingham (age 40) and Charlotte Primrose Countess Effingham (age 31). Coefficient of inbreeding 3.12%.

On 23 Aug 1806 Henry Howard 2nd Earl of Effingham was born to Kenneth Alexander Howard 1st Earl of Effingham (age 38) and Charlotte Primrose Countess Effingham (age 30). Coefficient of inbreeding 3.12%.

On 30 Oct 1803 Charlotte Howard was born to Kenneth Alexander Howard 1st Earl of Effingham (age 35) and Charlotte Primrose Countess Effingham (age 27). Coefficient of inbreeding 3.12%.

Around 1568 Amice Carteret was born to Helier Carteret (age 35) and Margaret Carteret (age 59) at St Ouen Jersey. Coefficient of inbreeding 3.12%.

Esther Carteret was born to Helier Carteret and Margaret Carteret. Coefficient of inbreeding 3.12%.

On 07 May 1813 Mark Egerton was born to Wilbraham Egerton (age 31) and Elizabeth Sykes (age 35). Coefficient of inbreeding 3.12%.

On 13 Oct 1836 Mervyn Wingfield 7th Viscount Powerscourt was born to Richard Wingfield 6th Viscount Powerscourt (age 21) and Elizabeth Frances Jocelyn Viscountess Powerscout (age 22). Coefficient of inbreeding 3.12%.

Laura Priscilla Buxton was born to Edward North Buxton 2nd Baronet and Catherine Gurney Lady Buxton. Coefficient of inbreeding 3.12%.

Sarah Evelyn Buxton was born to Edward North Buxton 2nd Baronet and Catherine Gurney Lady Buxton. Coefficient of inbreeding 3.12%.

On 26 Jan 1837 Thomas Fowell Buxton 3rd Baronet was born to Edward North Buxton 2nd Baronet (age 24) and Catherine Gurney Lady Buxton (age 23). Coefficient of inbreeding 3.12%.

On 21 Jun 1852 Lieutenant-Colonel Geoffrey Fowell Buxton was born to Thomas Fowell Buxton (age 29) and Rachel Jane Gurney (age 28). Coefficient of inbreeding 3.12%.

On 24 May 1932 James Michael Langham 15th Baronet was born to John Charles Langham 14th Baronet (age 37) and Rosamond Christabel Rashleigh (age 28). Coefficient of inbreeding 3.12%.

In 1861 Alfred Ezra Sassoon was born to Sassoon David Sassoon (age 28) and Flora Gubbay aka Sassoon (age 1). Coefficient of inbreeding 3.12%.

Eleanor Nightingale Lady Nightingale was born to Robert Nightingale and Mary Ethelston. Coefficient of inbreeding 3.12%.

On 29 Apr 1843 Constance Rothschild Baroness Battersea was born to Anthony Rothschild 1st Baronet (age 32) and Louisa Montefiore Lady Rothschild (age 21) Coefficient of inbreeding 3.12%.

In 1844 Annie Henrietta Rothschild was born to Anthony Rothschild 1st Baronet (age 33) and Louisa Montefiore Lady Rothschild (age 22). Coefficient of inbreeding 3.12%.

In 1843 Adèle von Rothschild was born to Mayer Carl Freiherr von Rothschild (age 22) and Louise de Rothschild (age 23). Coefficient of inbreeding 3.12%.

In 1844 Emma Louise von Rothschild Baroness Rothschild was born to Mayer Carl Freiherr von Rothschild (age 23) and Louise de Rothschild (age 24). Coefficient of inbreeding 3.12%.

On 19 Sep 1855 Marguerite de Rothschild Duchess Gramont was born to Mayer Carl Freiherr von Rothschild (age 35) and Louise de Rothschild (age 35). Coefficient of inbreeding 3.12%.

On 02 Jan 1862 Bertha-Clara von Rothschild was born to Mayer Carl Freiherr von Rothschild (age 41) and Louise de Rothschild (age 42). Coefficient of inbreeding 3.12%.

Osthryth Bernicia Queen Consort Mercia was born to King Oswiu of Northumbria and Eanflæd Queen Consort Bernicia. Coefficient of inbreeding 3.12%.

Around 645 King Ecgfrith of Northumbria was born to King Oswiu of Northumbria (age 33) and Eanflæd Queen Consort Bernicia (age 18). Coefficient of inbreeding 3.12%.

On 23 Aug 1836 Catherine Vanderbilt was born to Cornelius "Commodore" Vanderbilt (age 42) and Sophia Johnson Coefficient of inbreeding 3.12%.

On 29 Dec 1830 Cornelius Jeremiah Vanderbilt was born to Cornelius "Commodore" Vanderbilt (age 36) and Sophia Johnson Coefficient of inbreeding 3.12%.

On 23 Oct 1676 Nathaniel Fiennes 4th Viscount Saye and Sele was born to William Fiennes 3rd Viscount Saye and Sele (age 35) and Mary Fiennes (age 23). Coefficient of inbreeding 3.12%.

William Boleyn was born to Geoffrey Boleyn and Alice Bracton. Coefficient of inbreeding 3.12%.

Frances Marina Wynn was born to Spencer Bulkeley Wynn 3rd Baron Newborough and Frances Maria De Winton Baroness Newborough. Coefficient of inbreeding 3.12%.

Emily Annina Wynn was born to Spencer Bulkeley Wynn 3rd Baron Newborough and Frances Maria De Winton Baroness Newborough. Coefficient of inbreeding 3.12%.

Ellen Glynn Wynn was born to Spencer Bulkeley Wynn 3rd Baron Newborough and Frances Maria De Winton Baroness Newborough. Coefficient of inbreeding 3.12%.

Catherine Wynn was born to Spencer Bulkeley Wynn 3rd Baron Newborough and Frances Maria De Winton Baroness Newborough. Coefficient of inbreeding 3.12%.

On 10 Jun 1844 Isabella Elizabeth Wynn Viscountess Hill was born to Spencer Bulkeley Wynn 3rd Baron Newborough (age 41) and Frances Maria De Winton Baroness Newborough. Coefficient of inbreeding 3.12%.

On 31 Dec 1840 Thomas John Wynn was born to Spencer Bulkeley Wynn 3rd Baron Newborough (age 37) and Frances Maria De Winton Baroness Newborough. Coefficient of inbreeding 3.12%.

On 19 Aug 1845 William Percival Wynn was born to Spencer Bulkeley Wynn 3rd Baron Newborough (age 42) and Frances Maria De Winton Baroness Newborough. Coefficient of inbreeding 3.12%.

On 22 Apr 1847 Charles Henry Wynn was born to Spencer Bulkeley Wynn 3rd Baron Newborough (age 43) and Frances Maria De Winton Baroness Newborough. Coefficient of inbreeding 3.12%.

On 17 Jan 1853 Frederick George Wynn was born to Spencer Bulkeley Wynn 3rd Baron Newborough (age 49) and Frances Maria De Winton Baroness Newborough. Coefficient of inbreeding 3.12%.

On 09 Aug 1828 Henry St John Halford 3rd Baronet was born to Henry Halford 2nd Baronet (age 31) and Barbara Vaughan. Coefficient of inbreeding 3.12%.

On 16 May 1830 Reverend John Frederick Halford 4th Baronet was born to Henry Halford 2nd Baronet (age 33) and Barbara Vaughan. Coefficient of inbreeding 3.12%.