Guillaume married Béatrix de Beaumont-sur-Oise Abt 1225. Béatrix (daughter of Hugues II de Beaumont-sur-Oise) was born Abt 1205. [Group Sheet]
Ansout married Marie d'Autrèches Abt 1250. Marie (daughter of Guy d'Autrèches and Élisabeth d'Abecourt) was born Abt 1233; died 1270. [Group Sheet]
Ansout married Jeanne d'Abecourt Abt 1270. Jeanne was born Abt 1250. [Group Sheet]
Marguerite married Guy de Clermont Abt 1288. Guy (son of Simon II de Clermont and Béatrix de Montfort) was born Abt 1255; died 11 Jul 1302, Bataille de Courtrai (des Éperons d'or), Kortrijk, Flandre-Occidentale, Belgique. [Group Sheet]