Hugues II D' OISY
Hugues II D' was born about 1090.¹   He died about 1133.¹ 

 Heldiarde D' Hainaut De MONS-CHIEVERS
Heldiarde D' Hainaut De was born about 1095.¹   She died in 1131.¹ 

 Simon De Cambray D' OISY
Simon De Cambray D' was born about 1120.¹   He died in Y.¹