Robert married Sibylle de Lorraine Bef 1193. Sibylle (daughter of Pierre de Lorraine and Mathilde de Bourgogne) was born Abt 1176; died 1236. [Group Sheet]
Hellin married Élisabeth Félicité de Montmirail 1211. Élisabeth (daughter of Jean de Montmirail and Helvide de Dampierre) was born Abt 1192; died Aft 1220. [Group Sheet]
Robert married Eustache de Châtillon 1227. Eustache (daughter of Gaucher de Châtillon and Élisabeth de Saint-Pol) was born Abt 1210. [Group Sheet]
Robert married Mathilde de Béthune Abt 1240. Mathilde (daughter of Guillaume de Béthune and Isabelle de Pontrohart) was born Abt 1220; died Abt 1289. [Group Sheet]
Sibylle married Hugues d'Antoing Bef 1260. Hugues (son of Hugues d'Antoing and Philippa de Harnes) was born Abt 1230; died 1310. [Group Sheet]
Jeanne married Rasse de Gavre Abt 1255. Rasse (son of Rasse de Gavre and Alice van Bourlaere) was born Abt 1210; died 1255. [Group Sheet]
Robert married Mahaud de Lille Abt 1285. Mahaud (daughter of Jean de Lille and Béatrix de Clermont) was born Abt 1270. [Group Sheet]
Wilhelmine married Jean de Gavre Abt 1270. Jean (son of Arnoul II de Gavre) was born Abt 1245; died 1301. [Group Sheet]