Nicholas II of Rumigny
Nicholas II of Rumigny was born about 1094 in Hainault, Belgium.  He died after 1153.

 Alice of Hainault
Alice of Hainault was born about 1097 in Hainault, Belgium.  She died about 1153.

 Beatrix of Rumigny
Beatrix of Rumigny was born about 1125 in Hainault, Belgium.