Half Third Cousin

Half Third Cousin is in Third Cousin and Above.

1152 Marriage of Henry II and Eleanor of Aquitaine

1396 Marriage of Richard II and Isabella of Valois

1470 Re-adeption of King Henry VI

1525 Knighting of Henry Fitzroy

In or before 1147 Ranulf Gernon 4th Earl Chester (age 48) and Matilda Fitzrobert Countess Chester were married. She by marriage Countess Chester. She the daughter of Robert Normandy 1st Earl Gloucester (age 48) and Mabel Fitzhamon Countess Gloucester. He the son of Ranulf le Meschin Gernon 3rd Earl Chester and Lucy Bolingbroke Countess Chester. They were half third cousins. She a granddaughter of King Henry I "Beauclerc" England.

Marriage of Henry II and Eleanor of Aquitaine

On 18 May 1152 Whit Sunday King Henry "Curtmantle" II of England (age 19) and Eleanor of Aquitaine Queen Consort Franks and England (age 30) were married at Poitiers Cathedral [Map]. They were more closely related than Eleanor and her previous husband Louis VII King Franks (age 32). The marriage would bring the Kingdom of England, and the Duchies of Normandy and Aquitaine under the control of King Henry "Curtmantle" II of England (age 19). She the daughter of William "Saint" Poitiers X Duke Aquitaine and Aenor Chatellerault Duchess Aquitaine. He the son of Geoffrey Plantagenet Duke Normandy and Empress Matilda (age 50). They were half third cousins. He a grandson of King Henry I "Beauclerc" England.

On 28 Apr 1180 King Philip II of France (age 14) and Isabelle Flanders Queen Consort France (age 10) were married. She by marriage Queen Consort of France. She the daughter of Baldwin Flanders V Count Hainault (age 30) and Margaret Metz Countess Hainault and Flanders. He the son of Louis VII King Franks (age 60) and Adèle Blois. They were half third cousins. He a great x 2 grandson of King William "Conqueror" I of England.

In 1188 Ranulf de Blondeville Gernon 6th Earl Chester 1st Earl Lincoln (age 18) and Constance Penthièvre Duchess Brittany (age 27) were married. She by marriage Countess Chester. She the daughter of Conan "The Young" Penthièvre IV Duke Brittany and Margaret Dunkeld Duchess Brittany (age 43). He the son of Hugh de Kevelioc Gernon 5th Earl Chester and Bertrade Montfort Countess Chester. They were half third cousins. He a great x 2 grandson of King Henry I "Beauclerc" England. She a great x 2 granddaughter of King Henry I "Beauclerc" England.

In 1220 William Gerulfing I Count Holland (age 53) and Marie Reginar Countess Holland (age 30) were married. She by marriage Countess Holland. The difference in their ages was 23 years. She the daughter of Henry Reginar VIII Duke Lower Lorraine I Duke Brabant (age 55) and Maud Metz. He the son of Floris Gerulfing III Count Holland and Ada Dunkeld Countess Holland. They were half third cousins. She a great x 3 granddaughter of King William "Conqueror" I of England.

On 21 Jun 1221 Alexander II King Scotland (age 22) and Joan Plantagenet Queen of Scotland (age 10) were married. She by marriage Queen Consort Scotland. She the daughter of King John "Lackland" of England and Isabella of Angoulême Queen Consort England (age 33). He the son of William "Lion" I King Scotland and Ermengarde Beaumont Sarthe Queen Consort Scotland (age 51). They were half third cousins. He a great x 2 grandson of King Henry I "Beauclerc" England.

On 27 May 1234 King Louis IX of France (age 20) and Margaret Provence Queen Consort France (age 13) were married. She by marriage Queen Consort of France. She the daughter of Raymond Berenguer Provence IV Count Provence (age 36) and Beatrice Savoy Countess Provence (age 36). He the son of Louis "Lion" VIII King France and Blanche Ivrea Queen Consort France (age 46). They were half third cousins. He a great grandson of King Henry "Curtmantle" II of England.

In 1238 Simon de Montfort 6th Earl of Leicester 1st Earl Chester (age 30) and Eleanor Plantagenet Countess Pembroke and Leicester (age 23) were married at Westminster Palace [Map]. She by marriage Countess of Leicester. She the daughter of King John "Lackland" of England and Isabella of Angoulême Queen Consort England (age 50). He the son of Simon "Elder" Montfort 5th Earl of Leicester and Alix Montmorency. They were half third cousins. He a great x 2 grandson of King Henry I "Beauclerc" England.

On 31 Jan 1246 King Charles Capet of Sicily (age 18) and Beatrice Provence Queen Consort Sicily (age 15) were married. She the daughter of Raymond Berenguer Provence IV Count Provence and Beatrice Savoy Countess Provence (age 48). He the son of Louis "Lion" VIII King France and Blanche Ivrea Queen Consort France (age 57). They were half third cousins. He a great grandson of King Henry "Curtmantle" II of England.

In 1249 Alfonso X King Castile X King Leon (age 27) and Violante Barcelona Queen Consort Castile Queen Consort Leon were married. She the daughter of James I King Aragon (age 40) and Violant Árpád Queen Consort Aragon (age 34). He the son of Ferdinand III King Castile III King Leon (age 50) and Elisabeth Hohenstaufen Queen Consort Castile Queen Consort Leon. They were half third cousins. He a great x 2 grandson of King Henry "Curtmantle" II of England.

Before 1250 Roger de Quincy 2nd Earl Winchester (age 55) and Helen Galloway Countess Winchester were married. She by marriage Earl Winchester. He the son of Saer Quincy 1st Earl Winchester and Margaret Beaumont Countess Winchester. They were half third cousins. She a great x 4 granddaughter of King Henry I "Beauclerc" England.

On 06 Apr 1255 Theobald "Young" II King Navarre (age 15) and Isabella Capet (age 14) were married. She the daughter of King Louis IX of France (age 40) and Margaret Provence Queen Consort France (age 34). He the son of Theobald IV King Navarre and Margaret Bourbon Queen Consort Navarre (age 38). They were half third cousins. He a great x 4 grandson of King William "Conqueror" I of England. She a great x 2 granddaughter of King Henry "Curtmantle" II of England.

In 1269 Henry I King Navarre (age 25) and Blanche Capet Queen Navarre (age 21) were married. She the daughter of Robert Capet Count of Artois and Matilda Reginar Countess Saint Pol (age 45). He the son of Theobald IV King Navarre and Margaret Bourbon Queen Consort Navarre. They were half third cousins. He a great x 4 grandson of King William "Conqueror" I of England. She a great x 2 granddaughter of King Henry "Curtmantle" II of England.

On 26 Feb 1324 William Jülich V Duke Jülich (age 25) and Joanna Hainault Duchess Guelders (age 9) were married. She the daughter of William Hainault I Count Hainault III Count Avesnes III Count Holland II Count Zeeland (age 38) and Joan Valois Countess Zeeland Holland Avesnes and Hainault (age 30). He the son of Gerhard Jülich V Count Jülich (age 74) and Elisabeth Brabant Countess Jülich. They were half third cousins. She a great x 5 granddaughter of King Henry "Curtmantle" II of England.

In 1325 John Bohun 5th Earl Hereford 4th Earl Essex (age 18) and Alice Fitzalan Countess Essex and Hereford were married. She by marriage Countess Essex, Countess Hereford. She the daughter of Edmund Fitzalan 9th Earl of Arundel (age 39) and Alice Warenne Countess Arundel. He the son of Humphrey Bohun 4th Earl Hereford 3rd Earl Essex and Princess Elizabeth of Rhuddlan Countess Essex, Hereford and Holland. They were half third cousins. He a grandson of King Edward "Longshanks" I of England. She a great x 5 granddaughter of King John "Lackland" of England.

On 05 Feb 1344 Richard Fitzalan 10th Earl of Arundel 8th Earl of Surrey (age 38) and Eleanor Plantagenet Countess Arundel and Surrey (age 25) were married at Ditton Church, Stoke Poges. She by marriage Countess Arundel Sussex. She the daughter of Henry Plantagenet 3rd Earl of Leicester 3rd Earl Lancaster (age 63) and Maud Chaworth. He the son of Edmund Fitzalan 9th Earl of Arundel and Alice Warenne Countess Arundel. They were half third cousins. He a great x 5 grandson of King John "Lackland" of England. She a great granddaughter of King Henry III of England.

Before 1352 Thomas Brewes (age 50) and Beatrice Mortimer (age 29) were married. The difference in their ages was 20 years. She the daughter of Roger Mortimer 1st Earl March and Joan Geneville Baroness Mortimer 2nd Baroness Geneville (age 65). They were half third cousins. He a great x 3 grandson of King John "Lackland" of England. She a great x 4 granddaughter of King John "Lackland" of England.

On 19 Jun 1369 Philip "Bold" Valois II Duke Burgundy (age 27) and Margaret Dampierre Duchess Burgundy (age 21) were married. She by marriage Duchess Burgundy. She the daughter of Louis Dampierre III Count Nevers II Count Flanders (age 38) and Margaret Brabant Countess Nevers and Flanders (age 46). He the son of King John "The Good" II of France and Bonne Luxemburg Queen Consort France. They were half third cousins. He a great x 5 grandson of King Henry "Curtmantle" II of England. She a great x 2 granddaughter of King Edward "Longshanks" I of England.

Before 1371 John Dunbar 1st Earl of Moray (age 29) and Marjorie Stewart Countess Moray (age 22) were married. She the daughter of King Robert II of Scotland (age 54) and Elizabeth Mure Queen Consort Scotland. He the son of Patrick Dunbar 9th Earl March and Agnes "Black Agnes" Randolph Countess March. They were half third cousins. She a great x 4 granddaughter of King John "Lackland" of England.

On 28 Oct 1371 Robert Ufford and Eleanor Fitzalan (age 6) were married. She the daughter of Richard Fitzalan 9th Earl of Surrey 11th Earl of Arundel (age 25) and Elizabeth Bohun Countess Arundel and Surrey (age 21). He the son of William Ufford 2nd Earl Suffolk (age 33) and Joan Montagu Countess Suffolk (age 22). They were half third cousins. He a great x 2 grandson of King Edward "Longshanks" I of England. She a great x 2 granddaughter of King Edward "Longshanks" I of England.

On 24 Jun 1380 John Hastings 3rd Earl Pembroke (age 7) and Elizabeth Lancaster Duchess Exeter (age 17) were married at Kenilworth Castle [Map]. She by marriage Countess Pembroke. She the daughter of John of Gaunt 1st Duke Lancaster (age 40) and Blanche Plantagenet Duchess Lancaster. He the son of John Hastings 2nd Earl Pembroke and Anne Manny Countess Pembroke. They were half third cousins. He a great x 2 grandson of King Edward "Longshanks" I of England. She a granddaughter of King Edward III of England.

After 24 Jun 1380 John Hastings 3rd Earl Pembroke (age 7) and Elizabeth Lancaster Duchess Exeter (age 17) marriage annulled since she had become pregnant by John Holland 1st Duke Exeter (age 28) whom she subsequently married. It isn't clear whether John Holland was punished; he was half-brother to King Richard II of England (age 13) through their mother Joan "Fair Maid of Kent" Princess Wales (age 51).

Before 01 Aug 1385 John Fitzalan Baron Maltravers 2nd Baron Arundel (age 20) and Elizabeth Despencer Baroness Zouche, Harringworth, Maltravers and Arundel were married. She by marriage Baroness Maltravers, Baroness Arundel. They were half third cousins. He a great x 3 grandson of King Henry III of England. She a great x 3 granddaughter of King Edward "Longshanks" I of England.

Marriage of Richard II and Isabella of Valois

On 31 Oct 1396 King Richard II of England (age 29) and Isabella Valois Queen Consort England (age 6) were married. The marriage being one of the terms of a twenty-eight year peace treaty with France. He twenty-nine, she six. The marriage sowed the seeds subsequent rebellion since there was no prospect of an heir to secure the Crown. The difference in their ages was 22 years. She the daughter of Charles "Beloved Mad" VI King France (age 27) and Isabeau Wittelsbach Queen Consort France (age 26). He the son of Edward "Black Prince" and Joan "Fair Maid of Kent" Princess Wales. They were half third cousins. He a grandson of King Edward III of England. She a great x 5 granddaughter of King Henry III of England.

William Ros 6th Baron Ros Helmsley (age 26) attended.

On 27 Nov 1397 John Beaufort 1st Marquess Somerset and Dorset (age 24) and Margaret Holland Duchess Clarence (age 12) were married. She by marriage Countess Somerset. She the daughter of Thomas Holland 2nd Earl Kent and Alice Fitzalan Countess Kent (age 47). He the illegitmate son of John of Gaunt 1st Duke Lancaster (age 57) and Katherine Roet Duchess Lancaster (age 47). They were half third cousins. He a grandson of King Edward III of England. She a great x 2 granddaughter of King Edward "Longshanks" I of England.

On 02 Jun 1446 William III Duke of Luxemburg (age 21) and Anne Habsburg (age 14) were married. She the daughter of Albert Habsburg V Duke Austria and Elizabeth Luxemburg Duchess Austria. They were half third cousins.

Around Jan 1450 John de la Pole 2nd Duke of Suffolk (age 7) and Margaret Beaufort Countess Richmond (age 6) were married. The date subject to debate. Papal dispensation was granted on 18 August 1450. Margaret never recognised this marriage, and considered her next husband her first; as confirmed by her 1472 will. She the daughter of John Beaufort 1st Duke of Somerset and Margaret Beauchamp Duchess Somerset (age 40). He the son of William "Jackanapes" de la Pole 1st Duke of Suffolk (age 53) and Alice Chaucer Duchess Suffolk (age 46). They were half third cousins. He a great x 5 grandson of King Edward "Longshanks" I of England. She a great x 2 granddaughter of King Edward III of England.

In Feb 1453 John de la Pole 2nd Duke of Suffolk (age 10) and Margaret Beaufort Countess Richmond (age 9) marriage annulled.

Before Feb 1458 John de la Pole 2nd Duke of Suffolk (age 15) and Elizabeth York Duchess Suffolk (age 13) were married. She by marriage Marchioness Suffolk 1C. She the daughter of Richard Plantagenet 3rd Duke of York (age 46) and Cecily "Rose of Raby" Neville Duchess York (age 42). He the son of William "Jackanapes" de la Pole 1st Duke of Suffolk and Alice Chaucer Duchess Suffolk (age 54). They were half third cousins. He a great x 5 grandson of King Edward "Longshanks" I of England. She a great x 2 granddaughter of King Edward III of England.

Before 1467 William Tailboys 7th Baron Kyme and Elizabeth Bonville Baroness Kyme (age 40) were married. She by marriage Baroness Kyme. They were half third cousins. She a great x 5 granddaughter of King Edward "Longshanks" I of England.

In or before 1469 John Grey 8th Baron Grey of Wilton (age 21) and Anne Grey Baroness Grey Wilton (age 18) were married. She by marriage Baroness Grey of Wilton. She the daughter of Edmund Grey 1st Earl Kent (age 52) and Katherine Percy (age 45). They were half third cousins. He a great x 3 grandson of King Edward III of England. She a great x 3 granddaughter of King Edward III of England.

Re-adeption of King Henry VI

On 13 Dec 1470 Edward of Westminster Prince of Wales (age 17) and Anne Neville Queen Consort England (age 14) were married at Angers Cathedral [Map]. She by marriage Princess of Wales. She the daughter of Richard "Kingmaker" Neville Earl Warwick, 6th Earl Salisbury (age 42) and Anne Beauchamp 16th Countess Warwick (age 44). He the son of King Henry VI of England and II of France (age 49) and Margaret of Anjou Queen Consort England (age 40). They were half third cousins. She a great x 3 granddaughter of King Edward III of England.

After 1483 Thomas Grey 2nd Marquess Dorset (age 5) and Eleanor St John Marchioness Dorset were married. He the son of Thomas Grey 1st Marquess Dorset (age 28) and Cecily Bonville Marchioness Dorset (age 22). They were half third cousins. He a great x 4 grandson of King Edward III of England.

Around 1490 George Manners 11th Baron Ros Helmsley (age 20) and Anne St Leger Baroness Ros of Helmsley (age 13) were married. She the daughter of Thomas St Leger and Anne York Duchess Exeter. They were half third cousins. She a great x 3 granddaughter of King Edward III of England.

Around 1511 John de Vere 14th Earl of Oxford (age 11) and Anne Howard Countess of Oxford were married. She by marriage Countess of Oxford. She the daughter of Thomas Howard 2nd Duke of Norfolk (age 68) and Agnes Tilney Duchess Norfolk (age 34). They were half third cousins.

Before 1521 William Dacre 3rd Baron Dacre Gilsland 7th Baron Greystoke (age 28) and Elizabeth Talbot Baroness Dacre of Gilsland (age 13) were married. She by marriage Baroness Dacre Gilsland. She the daughter of George Talbot 4th Earl of Shrewsbury (age 52) and Anne Hastings Countess Shrewsbury and Waterford. They were half third cousins. He a great x 5 grandson of King Edward III of England. She a great x 4 granddaughter of King Edward III of England.

On 30 Nov 1523 Francis Talbot 5th Earl of Shrewsbury (age 23) and Mary Dacre (age 21) were married. He the son of George Talbot 4th Earl of Shrewsbury (age 55) and Anne Hastings Countess Shrewsbury and Waterford. They were half third cousins. He a great x 4 grandson of King Edward III of England. She a great x 5 granddaughter of King Edward III of England.

Knighting of Henry Fitzroy

Around 18 Jun 1525 Henry Clifford 2nd Earl of Cumberland (age 8) and Eleanor Brandon Countess Cumberland (age 6) were married at Bridewell Palace [Map]. King Henry VIII of England and Ireland (age 33) was present. She the daughter of Charles Brandon 1st Duke of Suffolk (age 41) and Mary Tudor Queen Consort France (age 29). He the son of Henry Clifford 1st Earl of Cumberland (age 32) and Margaret Percy Baroness Clifford (age 25). They were half third cousins. He a great x 5 grandson of King Edward III of England. She a granddaughter of King Henry VII of England and Ireland.

Before 1527 William Keith 4th Earl Marischal (age 20) and Margaret Keith Countess Marischal (age 15) were married. She by marriage Countess Marischal. They were half third cousins. He a great x 5 grandson of King Edward III of England.

In or before 1540 Nicholas Pelham (age 23) and Anne Sackville (age 18) were married. They were half third cousins.

In 1557 John Arundell (age 27) and Anne Stanley Baroness Stourton (age 15) were married. She the daughter of Edward Stanley 3rd Earl of Derby (age 47) and Dorothy Howard Countess Derby (age 46). They were half third cousins.

On 01 Oct 1561 William Cromer (age 30) and Margaret Kempe were married. They were half third cousins.

Before 1567 John Sinclair and Jean Hepburn were married. She the daughter of Patrick Hepburn 3rd Earl Bothwell and Agnes Sinclair Countess Bothwell. He the son of George Sinclair 4th Earl Caithness and Elizabeth Graham Countess Caithness (age 46). They were half third cousins. She a great x 5 granddaughter of King Edward III of England.

In 1567 Edward Hastings (age 26) and Barbara Devereux (age 23) were married. He the son of Francis Hastings 2nd Earl Huntingdon and Catherine Pole Countess Huntingdon (age 56). They were half third cousins.

On 27 May 1601 Edward Seymour 1st Earl Hertford (age 62) and Frances Howard Duchess Lennox and Richmond (age 22) were married. She by marriage Countess Hertford. The difference in their ages was 39 years. He the son of Edward Seymour 1st Duke of Somerset and Anne Stanhope Duchess Somerset. They were half third cousins. He a great x 5 grandson of King Edward III of England.

On 22 Jun 1612 Alexander Seton aka Montgomerie 6th Earl Eglinton (age 24) and Anne Livingstone Countess Eglinton were married. She the daughter of Alexander Livingston 1st Earl Linlithgow and Helen Hay. He the son of Robert Seton 1st Earl Winton and Margaret Montgomerie Countess Winton. They were half third cousins.

On 25 Jul 1646 Francis Scott 2nd Earl Buccleuch (age 19) and Margaret Leslie Countess Buccleuch and Wemyss (age 26) were married. She by marriage Countess Buccleuch. She the daughter of John Leslie 6th Earl Rothes and Anne Erskine Countess of Rothes. He the son of Walter Scott 1st Earl Buccleuch and Mary Hay Countess Buccleuch. They were half third cousins.

Before 1660 Christopher Bellew of Galway and Frances Plunkett were married. They were half third cousins.

In 1673 William Stanley 9th Earl of Derby (age 18) and Elizabeth Butler Countess Derby (age 13) were married. She by marriage Countess Derby. She the daughter of Thomas Butler 6th Earl Ossory (age 38) and Emilia Nassau Beverweert Countess Ossory (age 37). He the son of Charles Stanley 8th Earl of Derby and Dorothea Helena Kirkoven Countess Derby (age 43). They were half third cousins. He a great x 5 grandson of King Henry VII of England and Ireland.

In 1683 Charles Howard 3rd Earl Carlisle (age 14) and Anne Capell Countess Carlisle (age 9) were married. She the daughter of Arthur Capell 1st Earl Essex (age 50) and Elizabeth Percy Countess Essex (age 47). He the son of Edward Howard 2nd Earl Carlisle (age 36) and Elizabeth Uvedale Countess Carlisle. They were half third cousins.

On 21 Jun 1688 William Cavendish 2nd Duke Devonshire (age 16) and Rachel Russell Duchess Devonshire (age 14) were married. He the son of William Cavendish 1st Duke Devonshire (age 48) and Mary Butler Duchess Devonshire (age 42). They were half third cousins.

On 28 Feb 1692 Algernon Capell 2nd Earl Essex (age 21) and Mary Bentinck Countess Essex (age 12) were married. She by marriage Countess Essex. She the daughter of William Bentinck 1st Earl of Portland (age 42) and Anne Villiers Countess Portland. He the son of Arthur Capell 1st Earl Essex and Elizabeth Percy Countess Essex (age 56). They were half third cousins.

Before 29 Jun 1700 John Webb 2nd Baronet and Mary Blomer Lady Webb were married. She by marriage Lady Webb of Odstock in Wiltshire. They were half third cousins.

On 08 May 1708 Thomas Lyttelton 4th Baronet (age 22) and Christian Temple Lady Lyttelton (age 29) were married. They were half third cousins.

In 1744 John Sackville (age 30) and Frances Leveson-Gower (age 23) were married. She had given birth to their child before the marriage. She the daughter of John Leveson-Gower 1st Earl Gower (age 49) and Evelyn Pierrepont Baroness Gower. He the son of Lionel Cranfield Sackville 1st Duke Dorset (age 55) and Elizabeth Colyear Duchess Dorset (age 55). They were half third cousins.

On 12 Oct 1752 Lewis Watson 1st Baron Sondes (age 23) and Grace Pelham Baroness Sondes (age 17) were married. They were half third cousins.

Before 04 Dec 1762 Thomas Henry Clifford (age 30) and Barbara Aston (age 18) were married. They were half third cousins.

On 21 Sep 1766 Walter Blount 6th Baronet (age 41) and Mary Aston Lady Blount (age 23) were married. She by marriage Lady Blount of Sodington. They were half third cousins.

On 15 Aug 1802 Aubrey Beauclerk 6th Duke St Albans (age 36) and Louisa Grace Manners Duchess St Albans (age 25) were married. She by marriage Duchess St Albans. She the daughter of John Manners and Louisa Tollemache 7th Countess Dysart (age 57). He the son of Aubrey Beauclerk 5th Duke St Albans and Catherine Ponsonby Duchess St Albans. They were half third cousins. He a great x 2 grandson of King Charles II of England Scotland and Ireland.

On 18 May 1818 Hugh Henry Seymour-Conway (age 27) and Charlotte Georgiana Cholmondeley (age 23) were married. She the daughter of George Cholmondeley 1st Marquess Cholmondeley (age 69) and Georgina Charlotte Bertie Marchioness Cholmondeley (age 56). They were half third cousins. He a great x 3 grandson of King James II of England Scotland and Ireland.

On 10 Apr 1875 Gerald Richard Brooke (age 22) and Kathleen Maude were married. She the daughter of Cornwallis Maude 1st Earl Montalt (age 58) and Clementina Elphinstone-Fleming Viscountess Hawarden. They were half third cousins.

On 28 Feb 1878 Captain Cornwallis Maude (age 25) and Eva Henrietta Brooke were married. He the son of Cornwallis Maude 1st Earl Montalt (age 60) and Clementina Elphinstone-Fleming Viscountess Hawarden. They were half third cousins.

On 27 Jul 1889 Alexander Duff 1st Duke Fife (age 39) and Louise Windsor Duchess Fife (age 22) were married. She the daughter of King Edward VII of the United Kingdom (age 47) and Alexandra Glücksburg Queen Consort England (age 44). He the son of James Duff 5th Earl Fife and Agnes Georgiana Elizabeth Hay Countess Fife. They were half third cousins. He a great grandson of King William IV of the United Kingdom.

On 21 Sep 1909 Edward Guiness 1st Earl Iveagh (age 61) and Adelaide "Dodo" Guinness Countess Iveagh (age 65) were married. They were half third cousins.

Around 1925 Lionel George Archer Cust (age 28) and Margaret Violet Louisa Clowes (age 21) were married. They were half third cousins.

Christopher Conyers 2nd Baron Conyers and Anne Dacre Baroness Conyers were married. They were half third cousins. He a great x 4 grandson of King Edward III of England. She a great x 5 granddaughter of King Edward III of England.

Prince Eitel Friedrich Hohenzollern and Sophia Charlotte Oldenburg were married. He the son of Wilhelm Hohenzollern and Empress Auguste Viktoria Oldenburg. They were half third cousins. He a great grandson of Queen Victoria of the United Kingdom.

John Livingston and Joanna Fleming were married. He the son of Alexander Livingston 5th Lord Livingston and Agnes Douglas Countess March. They were half third cousins. He a great x 5 grandson of King Edward III of England. She a great x 5 granddaughter of King Edward III of England.

John Cockayne and Agnes Vernon were married. They were half third cousins.

Archibald Campbell 4th Earl Argyll and Helen Hamilton Countess Argyll were married. She by marriage Countess Argyll. She the daughter of James Hamilton 1st Earl Arran and Elizabeth Home Countess Arran. He the son of Colin Campbell 3rd Earl Argyll and Jean or Janet Gordon Countess Argyll. They were half third cousins. He a great x 5 grandson of King Edward III of England. She a great x 5 granddaughter of King Edward III of England.

William Livingstone 6th Lord Livingstone and Agnes Fleming were married. He the son of Alexander Livingston 5th Lord Livingston and Agnes Douglas Countess March. They were half third cousins. He a great x 5 grandson of King Edward III of England. She a great x 5 granddaughter of King Edward III of England.

Ralph Eure and Muriel Hastings were married. They were half third cousins. He a great x 4 grandson of King Edward III of England.

Peter Courtenay and Yolanda Flanders were married. The difference in their ages was 20 years. She the daughter of Baldwin Flanders V Count Hainault and Margaret Metz Countess Hainault and Flanders. They were half third cousins.

Constantine Clifton and Margaret Howard were married. They were half third cousins. She a great x 3 granddaughter of King John "Lackland" of England.