Guillaume Aquitaine, Duke of Aquitaine

Abt 1099 - 1137  (38 years)

• Name	Guillaume Aquitaine
  Title	Duke of Aquitaine
  Birth	Abt 1099	Nord-Pas-De-Calais, France
  Gender	Male
  Death	9 Apr 1137	Spain
  Person ID	I7664	footsteps
  Last Modified	1 Jul 2025

  
  

  Father	Guillaume Aquitaine, Duke of Aquitaine ,   b. 22 Oct 1071, Aquitaine, France d. 10 Feb 1127, Aquitaine, France (Age 55 years)
  Relationship	natural
  Mother	Philippa Toulouse,   b. Abt 1073, Toulouse, Haute-Garonne, France d. 28 Nov 1117 (Age 44 years)
  Relationship	natural
  Marriage	1094	France
  Family ID	F1178	Group Sheet  |  Family Chart

  
  

  Family	Eleanor De Rochefoucauld,   b. Abt 1100   d. Aft Mar 1130, France (Age > 30 years)
  Marriage	1121	Aquitaine, France
  Children	+ 1. Eleonore D'Aquitaine, Queen Of France And England ,   b. 1123, Poitou-Charentes, France d. 1 Apr 1204, Poitou-Charentes, France (Age 81 years)  [Father: natural]  [Mother: natural]
  Family ID	F35	Group Sheet  |  Family Chart
  Last Modified	1 Jul 2025

  
  

• Notes

  William administered his Aquitaine duchy as both a lover of the arts an d a w a r r i or. He became involved in conflicts with Normandy, which he ra ided i n 1 1 3 6 i n alliance with Geoffrey V, Count of Anjou, who claimed i t in h i s w i f e's name and for France. Even inside his borders, William faced an alliance of the Lusignans and t h e P a r t henays against him, an issue resolved with total destruction of t h e e n e m ies. In international politics, William X initially supported an t i p o p e Anacletus II in the papal schism of 1130, opposite to Pope Innoc e n t I I , a gainst the will of his own bishops. In 1134, Saint Bernard of C l a i r v aux convinced William to drop his support for Anacletus and join I n n o c e nt.

  
  

• Photos

  Guillaume Aquitaine b1099