Otton married Helvide de Reves Abt 1115. Helvide was born Abt 1095; died Abt 1138. [Group Sheet]
Gilles married Gerberge de Landen Abt 1140. Gerberge (daughter of Henri de Landen) was born Abt 1120; died Aft 1188. [Group Sheet]
Otton married Mathilde de Neyghen Abt 1170. Mathilde was born Abt 1145; died 1219. [Group Sheet]
Élisabeth married Enghelbert d'Enghien Abt 1185. Enghelbert (son of Hugues d'Enghien and Hedwidge de Bentheim) was born Abt 1150; died Abt 1205. [Group Sheet]