Guillaume De Ponthieu
Guillaume was born about 0900 in Montreuil, France.  He died about 0965.

 Mathilda De Ganelon
Mathilda was born about 0900.  Mathilda is no longer alive.

 William De Talvas
William was born about 0918.

 Hilduin De Ponthieu
Hilduin was born about 0920 in Montreuil, Ponthieu, France.  He died after 0981.

 Ernicule De Talvas
Ernicule was born about 0922.  He died in 0972.

 Warin de Montagne de Talvas
Warin de Montagne was born about 0936.