In 1123 [his father] Theobald Blois II Count Champagne IV Count Blois (age 33) and [his mother] were married. She by marriage Countess Champagne, Countess Blois. He the son of Stephen Blois II Count Blois and Chartres 1045-1102 and Adela Normandy Countess Blois 1067-1137 (age 56). He a grandson of King William "Conqueror" I of England. 
In Dec 1127 Henry Blois I Count Champagne was born to Theobald Blois II Count Champagne IV Count Blois (age 37) and . He a great grandson of King William "Conqueror" I of England.
Around 1150 [his uncle] William "Simple" Blois Count Blois Count Chartres 1085-1150 (age 65) died. His brother [his father] Theobald Blois II Count Champagne IV Count Blois (age 60) succeeded II Count Champagne, IV Count Blois.
In 1152 [his father] Theobald Blois II Count Champagne IV Count Blois (age 62) died. His son Henry Blois I Count Champagne (age 24) succeeded I Count Champagne. His son [his brother] Theobald "Good" Blois V Count Blois 1130-1191 (age 22) succeeded V Count Blois.
In 1164 Henry Blois I Count Champagne (age 36) and Marie Capet Countess Champagne 1145-1198 (age 19) were married. She by marriage Countess Champagne. She the daughter of Louis VII King Franks (age 44) and Eleanor of Aquitaine Queen Consort Franks and England (age 42). He the son of Theobald Blois II Count Champagne IV Count Blois and . They were fourth cousins. He a great grandson of King William "Conqueror" I of England. 
On 29 Jul 1166 [his son] Henry Blois II Count Champagne 1166-1197 was born to Henry Blois I Count Champagne (age 38) and [his wife] Marie Capet Countess Champagne 1145-1198 (age 21). He a great x 2 grandson of King William "Conqueror" I of England.
On 27 Aug 1172 [his brother-in-law] Henry the Young King (age 17) and [his sister-in-law] Margaret Capet (age 15) were married at Winchester Cathedral [Map]. Margaret's dowry included the Vexin; the border between France and Normandy. On the same day they were both crowned by Rotrou Newburgh Archbishop Rouen. She the daughter of Louis VII King Franks (age 52) and Constance of Castile. He the son of King Henry "Curtmantle" II of England (age 39) and Eleanor of Aquitaine Queen Consort Franks and England (age 50). They were half fourth cousins.
On 13 May 1179 [his son] Theobald Blois III Count Champagne was born to Henry Blois I Count Champagne (age 51) and [his wife] Marie Capet Countess Champagne 1145-1198 (age 34). He a great x 2 grandson of King William "Conqueror" I of England.
On 16 Mar 1181 Henry Blois I Count Champagne (age 53) died. His son [his son] Henry Blois II Count Champagne 1166-1197 (age 14) succeeded II Count Champagne.
On 11 Mar 1198 [his former wife] Marie Capet Countess Champagne 1145-1198 (age 53) died.
[his son] Scholastique Blois was born to Henry Blois I Count Champagne and Marie Capet Countess Champagne 1145-1198. He a great x 2 grandson of King William "Conqueror" I of England.
[his daughter] Marie Blois Countess Flanders -1204 was born to Henry Blois I Count Champagne and Marie Capet Countess Champagne 1145-1198. She a great x 2 granddaughter of King William "Conqueror" I of England.
Paternal Family Tree: Blois
Maternal Family Tree: Matilda Carinthia Countess Champagne and Blois
Descendants Family Trees:
Kings Wessex: Great x 7 Grand Son of King Edward "Elder" of the Anglo Saxons
Kings England: Great Grand Son of King William "Conqueror" I of England
Kings Franks: Great x 8 Grand Son of Louis "Pious" King Aquitaine I King Franks
Kings France: Great x 3 Grand Son of Robert "Pious" II King France
Agnes La Marck Queen Consort Navarre x 7
Theobald "Young" II King Navarre 1239-1270 x 1
Henry I King Navarre 1244-1274 x 1
Joan Blois I Queen Navarre 1273-1305 x 1
Henry Luxemburg VII Holy Roman Emperor 1275-1313 x 1
Louis X King France I Navarre x 1
Philip V King France I King Navarre 1293-1322 x 1
Charles IV King France I King Navarre x 1
Isabella of France Queen Consort England x 1
Marie Luxemburg Queen Consort France 1304-1324 x 1
Philip "Noble" III King Navarre x 1
Joan Évreux Queen Consort France 1310-1371 x 1
Margaret Hainault Holy Roman Empress x 1
Joan Capet II Queen Navarre x 1
King Edward III of England x 1
Philippa of Hainault Queen Consort England x 1
Bonne Luxemburg Queen Consort France 1315-1349 x 1
Charles IV King Bohemia Holy Roman Emperor Luxemburg x 1
John "The Posthumous" I King France 1316-1316 x 1
Blanche Valois Holy Roman Empress Luxemburg 1317-1348 x 1
Blanche Dampierre Queen Consort Norway and Sweden 1320-1363 x 2
Joan of the Tower Queen Consort Scotland x 1
Joan Auvergne Queen Consort France 1326-1360 x 1
Maria Évreux Queen Consort Aragon 1329-1347 x 2
Blanche Évreux Queen Consort France 1331-1398 x 2
Charles "Bad" II King Navarre x 2
Joanna Bourbon Queen Consort France 1338-1378 x 2
Blanche Bourbon Queen Consort Castile 1339-1361 x 2
Joan Valois Queen Consort Navarre 1343-1373 x 1
Philippa Lancaster Queen Consort Portugal 1360-1415 x 2
Charles III King Navarre 1361-1425 x 3
Yolande of Bar Queen Consort Aragon 1365-1431 x 3
Anne of Bohemia Queen Consort England x 1
King Richard II of England x 2
Sigismund I King Hungary I King Germany I King Bohemia Holy Roman Emperor Luxemburg x 1
Charles "Beloved Mad" VI King France x 3
Joanna of Navarre Queen Consort England x 3
Catherine of Lancaster Queen Consort Castile x 2
Blanche Évreux Queen Consort Aragon 1388-1441 x 3
Isabella Valois Queen Consort England x 3
Edward "The Philosopher" I King Portugal 1391-1438 x 2
Philippa Lancaster Queen Consort Denmark 1394-1430 x 2
Maria Trastámara Queen Consort Aragon 1401-1458 x 2
Catherine of Valois Queen Consort England x 3
Charles "Victorious" VII King France x 3
Joan Beaufort Queen Consort Scotland x 2
Marie Valois Anjou Queen Consort France 1404-1463 x 6
Jacquetta of Luxemburg Duchess Bedford x 3
Charles "Viana" IV King Navarre 1421-1461 x 3
King Henry VI of England and II of France x 5
Louis "Father of the People" XI King France x 9
Blanche Trastámara II Queen Navarre 1424-1464 x 3
Margaret Stewart Dauphine of France 1424-1445 x 2
Henry IV King Castile 1425-1474 x 2
Eleanor Trastámara Queen Consort Navarre 1426-1479 x 3
Isabella Aviz Queen Consort Castile 1428-1496 x 2
Margaret of Anjou Queen Consort England x 8
Isabella Aviz Queen Consort Portugal 1432-1455 x 2
Alfonso "The African" V King Portugal x 2
Mary of Guelders Queen Consort Scotland 1434-1463 x 7
Eleanor Aviz Holy Roman Empress 1434-1467 x 2
Elizabeth Woodville Queen Consort England x 3
Joan Aviz Queen Consort Castile 1439-1475 x 2
Charlotte Savoy Queen Consort France 1441-1483 x 6
King James III of Scotland x 9
King Richard III of England x 6
Anne Neville Queen Consort England x 4
King Henry VII of England and Ireland x 5
Maximilian Habsburg I Holy Roman Emperor x 2
Joanna "La Beltraneja" Trastámara Queen Consort Portugal 1462-1530 x 4
Joan Valois Queen Consort France 1464-1505 x 15
Elizabeth York Queen Consort England x 9
Francis I King Navarre 1467-1483 x 12
Catherine Grailly I Queen Navarre 1468-1517 x 12
Jean III King Navarre 1469-1516 x 3
Manuel "Fortunate" I King Portugal x 4
Isabella Trastámara Queen Consort Portugal 1470-1498 x 4
Bianca Maria Sforza Holy Roman Empress 1472-1510 x 6
Anne of Brittany Queen Consort France x 12
Philip "Handsome Fair" King Castile x 19
Joanna "The Mad" Trastámara Queen Castile x 4
Maria Trastámara Queen Consort Portugal 1482-1517 x 4
Joachim "Nestor" Hohenzollern Elector Brandenburg 1484-1535 x 2
Catherine of Aragon Queen Consort England x 4
Germaine Foix Queen Consort Aragon 1488-1538 x 14
Margaret Tudor Queen Scotland x 14
King Henry VIII of England and Ireland x 14
Marguerite Valois Orléans Queen Consort Navarre 1492-1549 x 19
Mary Tudor Queen Consort France x 14
Eleanor of Austria Queen Consort France Queen Consort Portugal 1498-1558 x 23
Claude Valois Orléans Queen Consort France 1499-1524 x 23
Charles V Holy Roman Emperor x 23
Isabella of Austria Queen Consort Denmark and Norway 1501-1526 x 23
Ferdinand I Holy Roman Emperor x 23
King Henry II of Navarre 1503-1555 x 15
Anne Jagiellon Holy Roman Empress x 8
Christian III King Denmark 1503-1559 x 2
Catherine of Austria Queen Consort Portugal x 23
Catherine Parr Queen Consort England x 2
Anne of Cleves Queen Consort England x 14
Mary of Guise Queen Consort Scotland x 42
Queen Mary I of England and Ireland x 18
Antoine King Navarre 1518-1562 x 35
Philip "The Prudent" II King Spain x 31
Maximilian Habsburg Spain II Holy Roman Emperor x 31
Maria of Spain Holy Roman Empress x 31
Jeanne Albret III Queen Navarre 1528-1572 x 34
Queen Elizabeth I of England and Ireland x 14
Frederick II King Denmark 1534-1588 x 2
Jane "Nine Days Queen" Grey I Queen England and Ireland x 19
King Edward VI of England and Ireland x 16
Louis VI Elector Palatine 1539-1583 x 7
Mary Queen of Scots x 65
Francis II King France King Consort Scotland x 42
Elizabeth Valois Queen Consort Spain x 42
Anna of Austria Queen Consort Spain x 62
Rudolf II Holy Roman Emperor 1552-1612 x 62
Louise Lorraine Queen Consort France 1553-1601 x 29
Margaret Valois Queen Consort France 1553-1615 x 42
Henry IV King France x 69
Sebastian King Portugal 1554-1578 x 62
Elisabeth of Austria Queen Consort France 1554-1592 x 62
Matthias I Holy Roman Emperor x 62
Sophie Mecklenburg-Schwerin Queen Consort Denmark 1557-1631 x 2
Christian Wettin I Elector Saxony 1560-1591 x 2
King James I of England and Ireland and VI of Scotland x 90
Ferdinand King Asturias 1571-1578 x 93
Maximilian "The Great" Wittelsbach I Duke Bavaria I Elector Bavaria x 94
Frederick IV Elector Palatine 1574-1610 x 7
Anne of Denmark Queen Consort Scotland England and Ireland x 4
Maria Anna Wittelsbach Holy Roman Empress 1574-1616 x 94
Marie de Medici Queen Consort France x 31
Diego King Asturias 1575-1582 x 93
Electress Louise Juliana of the Palatine Rhine 1576-1644 x 9
Christian IV King Denmark 1577-1648 x 4
Ferdinand of Spain II Holy Roman Emperor 1578-1637 x 73
Margaret of Austria Queen Consort Spain 1584-1611 x 73
John George Wettin Elector Saxony 1585-1656 x 2
Anna of Austria Holy Roman Empress 1585-1618 x 62
Princess Elizabeth Stewart Queen Bohemia x 94
Frederick Palatinate Simmern V Elector Palatine Rhine x 16
King Charles I of England, Scotland and Ireland x 94
Anne of Austria Spain Queen Consort France x 166
Louis XIII King France x 100
Elisabeth Bourbon Queen Consort Spain 1602-1644 x 100
Philip IV King Spain x 166
Maria Anna of Spain Holy Roman Empress x 166
Ferdinand King Bohemia III Holy Roman Emperor x 167
Frederick III King Denmark x 4
Henrietta Maria Bourbon Queen Consort England x 100
John George Wettin Elector Saxony 1613-1680 x 2
Frederick William "Great Elector" Hohenzollern Elector Brandenburg x 18
Sophie Amalie Hanover Queen Consort Denmark 1628-1685 x 2
Ernest Augustus Hanover Elector Brunswick-Lüneburg 1629-1698 x 2
Eleonora Gonzaga Queen Consort Bohemia 1630-1686 x 193
King Charles II of England Scotland and Ireland x 194
Maria Leopoldine Habsburg Spain Queen Consort Bohemia 1632-1649 x 73
Ferdinand King Bohemia IV King Romans 1633-1654 x 333
King James II of England Scotland and Ireland x 194
Mariana of Austria Queen Consort Spain x 333
Louis "Sun King" XIV King France x 266
Maria Theresa of Spain Queen Consort France x 266
Catherine of Braganza Queen Consort England x 8
Leopold Habsburg Spain I Holy Roman Emperor x 333
Christian V King Denmark and Norway x 6
Marie Françoise Élisabeth of Savoy Queen Consort of Portugal 1646-1683 x 155
John George Wettin III Elector Saxony 1647-1691 x 2
Charlotte Amalie Hesse-Kassel Queen Consort Denmark and Norway 1650-1714 x 20
King William III of England, Scotland and Ireland x 194
Charles Palatinate Simmern II Elector Palatine Rhine 1651-1685 x 112
Margaret Theresa Habsburg Holy Roman Empress x 499
King George I of Great Britain and Ireland x 112
Charles "Bewitched" II King Spain x 499
Marie Louise Bourbon Queen Consort Spain 1662-1689 x 460
Mary Stewart II Queen England Scotland and Ireland x 194
Maximilian Wittelsbach II Elector Bavaria 1662-1726 x 261
Queen Anne of England Scotland and Ireland x 194
Victor Amadeus King Sardinia x 386
Sophia Dorothea Hanover Queen Consort England 1666-1726 x 2
Louise of Mecklenburg Güstrow Queen Consort Denmark and Norway 1667-1721 x 8
Maria Anna Neuburg Queen Consort Spain 1667-1740 x 47
John George Wettin IV Elector Saxony 1668-1694 x 8
Sophia Charlotte Hanover Queen Consort Prussia 1668-1705 x 112
Anne Marie Bourbon Queen Consort Sardinia 1669-1728 x 460
Frederick IV King Denmark and Norway x 26
Frederick I King Sweden 1676-1751 x 40
Joseph I Holy Roman Emperor 1678-1711 x 380
Louis Bourbon Duke Burgundy 1682-1712 x 793
Caroline Hohenzollern Queen Consort England x 2
King George II of Great Britain and Ireland x 114
Philippe V King Spain x 793
Charles Habsburg Spain VI Holy Roman Emperor 1685-1740 x 380
Sophia Louise Mecklenburg-Schwerin Queen Consort Prussia 1685-1735 x 6
Sophia Dorothea Hanover Queen Consort Prussia 1687-1757 x 114
Ulrika Eleonora Palatinate Zweibrücken Queen Consort Sweden x 6
Frederick William "Soldier King" I King Prussia 1688-1740 x 130
John V King Portugal 1689-1750 x 8
Christian VI King Denmark and Norway 1699-1746 x 34
Charles Emmanuel III King Sardinia x 846
Polyxena Hesse Rotenburg Queen Consort Sardinia 1706-1735 x 2
Louis I King Spain 1707-1724 x 1639
Francis I Holy Roman Emperor 1708-1765 x 94
Louise Élisabeth Bourbon Queen Consort Spain 1709-1742 x 644
Louis XV King France x 1639
Adolph Frederick King Sweden 1710-1771 x 2
Elisabeth Therese Lorraine Queen Consort Sardinia 1711-1741 x 472
Barbara Queen Consort Spain 1711-1758 x 8
Frederick "The Great" I King Prussia 1712-1786 x 244
Ferdinand VI King Spain 1713-1759 x 1639
Joseph I King Portugal 1714-1777 x 8
Charles III King Spain 1716-1788 x 793
Maria Theresa Habsburg Spain Holy Roman Empress 1717-1780 x 380
Frederick V King Denmark and Norway 1723-1766 x 34
Louise Hanover Queen Consort Denmark and Norway 1724-1751 x 116
Victor Amadeus III King Sardinia 1726-1796 x 848
King George III of Great Britain and Ireland x 177
William Elector of Hesse x 156
Charlotte Mecklenburg Strelitz Queen Consort England x 6
Frederick William II King Prussia 1744-1797 x 244
Gustav III King Sweden x 246
Queen Sophia of Sweden 1746-1813 x 150
Electress Wilhelmina Caroline Oldenburg x 150
Charles XIII King Sweden 1748-1818 x 246
Charles IV King Spain x 793
Christian VII King Denmark and Norway 1749-1808 x 150
Caroline Matilda Hanover Queen Consort Denmark and Norway 1751-1775 x 177
Louis XVI King France x 2139
Louis XVIII King France 1755-1824 x 2139
King Charles X of France 1757-1836 x 2139
King George IV of Great Britain and Ireland x 183
King William IV of the United Kingdom x 177
Marie Sophie Hesse-Kassel Queen Consort Denmark and Norway 1767-1852 x 306
Frederick VI King Denmark and Norway 1768-1839 x 327
Francis Lorraine II Holy Roman Emperor 1768- x 474
Caroline of Brunswick Queen Consort England x 177
Frederick William II King Prussia 1770-1840 x 246
Ernest Augustus King Hanover x 183
King Louis Philippe I of France x 644
Frederica Mecklenburg Strelitz Queen Consort Hanover 1778-1841 x 8
Ferdinand VII King Spain x 3225
Louis XVII King France 1785-1795 x 2613
King Christian I of Norway and VIII of Denmark x 152
Frederick William IV King Prussia 1795-1861 x 246
Caroline Amalie Oldenburg Queen Norway 1796-1881 x 331
William I King Prussia 1797-1888 x 246
Maria Christina of the Two Sicilies Queen Consort Spain 1806-1878 x 4992
Frederick VII King Denmark 1808-1863 x 331
Queen Louise Hesse-Kassel of Denmark 1817-1898 x 308
King Christian IX of Denmark 1818-1906 x 312
Queen Victoria of the United Kingdom x 303
George V King Hanover 1819-1878 x 191
Isabella II Queen Spain x 8217
Frederick III King Prussia x 246
Victoria Empress Germany Queen Consort Prussia x 663
King Edward VII of the United Kingdom x 663
Frederick VIII King Denmark 1843-1912 x 620
Alexandra Glücksburg Queen Consort England x 620
George I King Greece 1845-1913 x 620
Alfonso XII King Spain x 11442
Gustav V King Sweden 1858-1950 x 597
Maria Christina of Austria Queen Consort Spain 1858-1929 x 1267
Wilhelm Hohenzollern x 909
Maria de las Mercedes Unknown Queen Consort Spain 1860-1878 x 3869
George V King United Kingdom x 1283
Victoria Mary Teck Queen Consort England x 495
Frederick Charles I King Finland 1868-1940 x 308
Constantine I King Greece x 1138
Maud Windsor Queen Consort Norway x 1283
Christian X King Denmark 1870-1947 x 620
Haakon VII King Norway x 620
Alexandrine Mecklenburg-Schwerin Queen Consort Denmark 1879-1952 x 697
Gustaf Adolph VI King Sweden 1882-1973 x 597
Alfonso XIII King Spain 1886-1941 x 12709
Victoria Eugénie Mountbatten Queen Consort Spain 1887-1969 x 669
Louise Mountbatten Queen Consort Sweden x 675
George II King Hellenes x 2047
Alexander I King Greece 1893-1920 x 2047
King Edward VIII of the United Kingdom x 1778
King George VI of the United Kingdom x 1778
Paul I King Greece 1901-1964 x 2047
Olav Glücksburg V King Norway 1903-1991 x 1903
Ingrid Bernadotte Queen Consort Denmark 1910-2000 x 1506
Philip Mountbatten Duke Edinburgh x 1813
Queen Elizabeth II of the United Kingdom x 2289
Sophia Glücksburg Queen Consort Spain 1938- x 4098
Juan Carlos I King Spain 1938- x 13378
Constantine II King Hellenes 1940- x 4098
Carl XVI King Sweden 1946- x 2812
King Charles III x 4102
Diana Spencer Princess Wales 1961-1997 x 2761
Great x 4 Grandfather: Theobald "Trickster" Blois I Count Blois 913-975
Great x 3 Grandfather: Odo Blois I Count Blois 950-996
Great x 4 Grandmother: Luitgarde Vermandois Duchess Normandy 915-978
Great x 2 Grandfather: Odo Blois II Count Blois 983-1037
Great x 4 Grandfather: Conrad I King Burgundy 925-993
Great x 3 Grandmother: Bertha Welf Queen Consort France 964-1010
Great x 4 Grandmother: Mathilde Carolingian Queen Consort Burgundy 943-992
Great x 1 Grandfather: Theobald Blois III Count Blois
Great x 3 Grandfather: William IV Auvergne
Great x 2 Grandmother: Ermengarde Auvergne Countess Blois 970-1040
GrandFather: Stephen Blois II Count Blois and Chartres 1045-1102
Great x 4 Grandfather: Conan "Crooked" Penthièvre III Duke Brittany -992
Great x 3 Grandmother: Unamed Penthièvre Countess Maine
Great x 4 Grandmother: Ermengarde Gerberga Ingelger Duchess Brittany 956-1024
Father: Theobald Blois II Count Champagne IV Count Blois Grand Son of King William "Conqueror" I of England
Great x 4 Grandfather: Richard "Fearless" Normandy I Duke Normandy 932-996
Great x 3 Grandfather: Richard "Good" Normandy II Duke Normandy
Great x 2 Grandfather: Robert "Magnificent" Normandy I Duke Normandy
Great x 4 Grandfather: Conan "Crooked" Penthièvre III Duke Brittany -992
Great x 3 Grandmother: Judith Penthièvre Duchess Normandy 982-1017
Great x 4 Grandmother: Ermengarde Gerberga Ingelger Duchess Brittany 956-1024
Great x 1 Grandfather: King William "Conqueror" I of England -2 x Great Grand Son of King William "Conqueror" I of England
Great x 3 Grandfather: Father of Beatrix and Herleva
Great x 2 Grandmother: Herleva Falaise
GrandMother: Adela Normandy Countess Blois 1067-1137 Daughter of King William "Conqueror" I of England
Great x 4 Grandfather: Arnulf II Count Flanders 960-987
Great x 3 Grandfather: Baldwin "Bearded" IV Count Flanders 980-1035
Great x 4 Grandmother: Rozala of Italy 950-1003
Great x 2 Grandfather: Baldwin "The Good" V Count Flanders
Great x 4 Grandfather: Frederick Luxemburg Ardennes
Great x 3 Grandmother: Ogive Luxemburg Countess Flanders -1036
Great x 4 Grandmother: Ermentrude Gleiburg
Great x 1 Grandmother: Matilda Flanders Queen Consort England
Great x 4 Grandfather: Hugh I King France
Great x 3 Grandfather: Robert "Pious" II King France
Great x 4 Grandmother: Adelaide Poitiers Queen Consort France 945-1004
Great x 2 Grandmother: Adela Capet Duchess Normandy 1009-1079
Great x 4 Grandfather: William "Liberator" Arles 1st Count Provence 1st Count Arles
Great x 3 Grandmother: Constance Arles Queen Consort France 986-1034
Great x 4 Grandmother: Adelaide Blanche Ingelger Queen Consort West Francia 940-1026
Henry Blois I Count Champagne 1127-1181 Great Grand Son of King William "Conqueror" I of England