The Counts of Champagne and Blois

In 940, the county of Blois was controlled by Thibaut I the Old, who founded the hereditary house of Blois. From 987, upon the establishment of the Capetian monarchy, the Counts of Blois were immediate vassals to the king. Because of the power held by the house of Blois, they were also at times considered to be dangerous rivals to the king. The successors of Thibaut I the Old enlarged their domain, sometimes at the expense of the Capetian monarchy, but territories were acquired and divided again and again among various descendants until Thibaut le Grand reunited Blois with Champagne in 1125.

Thibaut’s rule of his vast territories began with the reunification of Blois with Champagne in 1125. Thibauts’ father, Etienne de Blois, ruled the lands of Blois until his death in 1102. During this same time, Etienne’s younger brother, Hugh, held the county of Troyes and the adjacent areas of Bar-sur-Aube and Vitry. These areas held by Hugh would have remained separate had Hugh not transferred them to Thibaut le Grand, his nephew, in 1125. ..... more

The Siege of Antioch

Sigill Theobaldi Trecn Comitis Palatini

• A1 = Gerlon, Count of Blois, d:928;
  • B1 = Thibaut, Vicomte de Tours;
    • C1 = Thibaut I "le Tricheur", lvd:910/975, m. Luitgarde de Vermandois;
      • D1 = Count Eudes I de Blois, lvd:950/995, m. Bertha of Burgundy;  ==>  Counts of Burgundy
        • E1 = Count Eudes II de Blois, lvd:983/1037, m. Ermengarde;
          • F1 = Count Thibaut III de Blois, lvd:1012/1089, m1. Alix de Crepy, m2. Gundrada;
            <========
  • [m1]: G1 ~ Gilbert de Venables;  <==  Venables family
  • [m2]: G2 = Count Etienne de Blois, lvd:1046/1112, m. Princess Adela;  ==>  Normans
    • H1 .. Count Etienne de Blois, King Stephan of England, lvd:1095/1154, m. Mathilde de Boulogne-sur-Mer ;
    • H2 = Count Thibaut IV de Blois, lvd:1090/1142, m. Mathilde of Carinthia;
      • I1 = Marie de Blois, b:1126/1181, m. Duke Eudes II;  <==  Portugal
      • I2 = Count Henry I de Blois "le Liberal" de Champagne, lvd:1126/1181, m. Marie of France;  ==>  Capetians
        • J1 ~ Count Henry II de Champagne, lvd:1166/1197, m. Isabella d'Anjou;  ==>  Anjou dynasty
          • K1 ~ Alix of Champagne, Queen of Jerusalem, d:1247, m. Hugues de Lusignan;  <==  House of Lusignan
        • J2 = Marie de Champagne, d:1024, m. Count Baldwin VIII;  <==  Counts of Flanders
        • J3 = Count Thibaut III de Champagne, lvd:1179/1201, m. Blanche of Navarre;  ==>  Navarre
          • K1 = King Thibaut I of Navarre, lvd:1201/1253, m1. Margaret de Dampierre, m2. Agnes de Beaujeu;  ==>  Dampierre family
            • L1 = [m1]: King Enrique I of Navarre, d:1274, m. Blanche d'Artois;  ==>  Capetians
              • M1 = Queen Juana I of Navarre, lvd:1268/1314, m. King Philippe IV of France;  <==  Capetians
            • L2 ~ [m2]: Blance of Navarre, lvd:1226/1283, m. Duke Jean I de Dreux;  <==  Dukes of Brittany