Marguerite de Ponthieu 1216 (d. 1216) Parents John I, Count of Ponthieu Beatrix of Saint-Pol Children Alix de Picquigny Gérard II de Picquigny, Vidame d'Amiens Siblings William IV, Count of Ponthieu Adèle de Ponthieu Partners Enguerrand de Picquigny, Vidame d'Amiens