William* I Talvas Sire De Alencon
William* I Talvas Sire was born about 0979 in Normandy, France.¹   He died about 1031.¹ 

 Matilda* De Ganelon
Matilda* was born about 0980 in Normandy, France.¹   Matilda* is no longer alive.

 Warin* Signeur De Domfront

 Warcine* De Alencon
He died in 1026.¹ 

 William* II Talvas Count De Alencon
He died about 1065.¹