b. in Aquitaine . He was the son of Duke Guillaume IX of Aquitaine and Countess Philippa of Toulouse. Duke Guillaume married Eleanor de Chatellerault in 1121 while living in France. Eleanor was born about 1103 in Chatellerault, Poitou, Aquitaine. She was the daughter of Viscount Aimeri I of Chatellerault and Maubergeonne de L'Ilse Bouchard. She died after Mar 1130 .