William married Agnes DE DAMMARTIN in 1190. Agnes (daughter of Albri DE LUZARCHES and Maud Of PONTHIEU) died in 1237. [Group Sheet] [Family Chart]
Family/Spouse: Daughter Of JACQUES. [Group Sheet] [Family Chart]
Family/Spouse: Isabel DE CONDE. [Group Sheet] [Family Chart]
Family/Spouse: Baldwin (Baudoin) III. Baldwin (son of Arnould II and Beatrix DE BOURBOURG) died in 1244. [Group Sheet] [Family Chart]