William IX the Troubadour Poitou of Aquitaine, Duke of Aquitaine, Count of Poitiers, was born 22 October 1071 to William VIII of Aquitaine (1025-1086) and Hildegard de Bourgogne (c1056-1104) and died 10 February 1126 of unspecified causes. He married Mahaut-Philippa de Toulouse (c1070-1117) 1094 JL . He married Maubergeonne de l'Isle-Bouchard (1080-1153) 1120 JL . Hugh Capet (c940-996), Rollo of Normandy (860-932), Charlemagne (747-814)/s, Rollo of Normandy (860-932)/s.


Offspring of William IX of Aquitaine and Mahaut-Philippa de Toulouse (c1070-1117)
Name Birth Death Joined with
William X of Aquitaine (1099-1137) 1099 Toulouse, Haute-Garonne, France 9 April 1137 Eleonor de Châterault (1103-1137)
Emma de Limoges (1095-c1142)
Agnes de Poitiers (?-1159) 1159 Aimery V de Thouars (c1095-1127)
Ramiro II of Aragon (c1075-1157)
Raymond de Poitiers (c1115-1149) 1115 29 June 1159 Inab Constance of Antioch (1127-1163)
four daughters

Offspring of William IX of Aquitaine and unknown parent
Name Birth Death Joined with
Henri de Poitiers (c1085-c1132) 1085 1132
Adelaide de Poitiers (c1120-aft1172) 1110 1139 Raoul de Faye-le-Vineuse (1112-1185)
Sybille de Poitiers (c1087-c1134) 1087 1134


Footnotes (including sources)

‡ General