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

 Bisque De Gascogne
Bisque was born about 0990 in Gascogne, Aquitaine, France.  Bisque is no longer alive.

 Eudes De Gascogne
Eudes was born about 1012.

 Thibaud (Theobald) De Poitiers
Thibaud (Theobald) was born about 1015.