Guillaume (the Great) V, Duc d'Aquitaine
Guillaume, known as the Great, was born in 0969 in Poitiers, Vienne, France.  He died at the age of 61 on January 31st, 1030 in France.

 Agnes de Bourgogne
Agnes was born in 0997 in Germany.  She died after 1005.

 Guillaume (the Fat) VIII, Duc d'Aquitaine
Guillaume, known as the Fat, was born about 1026 in Aquitaine, Bordeaux, France.  He died on September 25th, 1086 in Aquitaine, Bordeaux, France.