Guillaume I de Ponthieu
Birth date:
ABT 914
Birth place:
Ponthieu, Somme, Picardy, France
 
Death date:
  965
Death place:
  , , ,

de Ponthieu Family

Parents:
Father: Herlouin Graaf Van Ponthieu
Mother: N.N. van Dammartin
Spouse:
Spouse: Maude De St. Pol Sur Mer De Therouanne
 
Siblings:
Roger de Montreuil
Guillaume I de Ponthieu
Children:
Hildouin 1 Graaf Van Ponthieu
Ernicule (Arnould) van Boulogne (Ponthieu)
Bernard 1 Van Ponthieu \St. Valery