Family: de Ponthieu, WIlliam I / de Gamaches, Saint Maud Mathilde (F13289)
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Male
de Ponthieu, WIlliam I
Birth 908 Saint-Riquier, Somme, Haute-Normandie, France 
Death 965 Ponthieu (Historical), Picardie, France Burial Marriage Father de Ponthieu, Count Herlouin II | F13291 Group Sheet Mother de Montreuil, Noelle Hersende | F13291 Group Sheet
Female
de Gamaches, Saint Maud Mathilde
Birth 918 Gamaches, Somme, Picardie, France Death 959 Abbeville, Somme, Picardie, France Burial Father Mother de Crequy, Mahaut | F13290 Group Sheet
Female
de Ponthieu, Adeline Maroie
Birth 940 Maroilles, Nord, Nord-Pas-de-Calais, France Death 998 Desvres, Pas-de-Calais, Nord-Pas-de-Calais, France Burial Spouse de Desvres, Sieur Chatelain Alphonse | F13288 Marriage