Count William de Belleme I d'Alen
William was born about 0942 in Normandy, France.  He died before 1005 in Domfront.

 Matilda Ganelon
Matilda was born about 0942 in Normandy, France.

 Count William de Belleme I of Alencon
William was born about 0966 in Belleme, Perche, France.  He died in 1028.