Guillaume V "The Great"
Guillaume V "The was born in 0975 in Poitiers, Aquitaine, France.

 Agnes de Macon
Agnes was born about 0995 in Bourgogne, France.  She died on November 10th, 1068.

 Agnaes of Aquitaine
Agnaes of was born about 1020 in Aquitaine, France.  She died on December 14th, 1077.

 VI Pierre-Guillaume
VI was born about 1023.

 Guillaume VIII (Guy Geoffroy)
Guillaume VIII (Guy was born in 1026 in Poitiers, Aquitaine, France.  He died at the age of 60 on September 25th, 1086.

 Bbeatrice D' Aquitaine
Bbeatrice was born about 1027 in Aquitaine, France.