Gossuin II Seigneur de Mons
Gossuin II Seigneur de was born about 1077 in Mons, Hainault, Belgium.  He died in 1126.

 Ida d' Ath
Ida d' was born about 1080 in Ath, Hainault, Belgium.  She died in 1135.

 Gossuin III Seigneur de Mons
Gossuin III Seigneur de was born about 1115 in Mons, Hainault, Belgium.  He died in 1177.