Gerard I Flaminus de Wassenberg of Guelders
He died after 1072.

 Clemence of Poitou
She died after 1129.

 Jutta (Judith) von Wassenberg
Jutta (Judith) was born after 1072.

 Gerard II van Geldern of Guelders
Gerard II van Geldern of was born after 1072.  He died after 1134.

 Yolande (Jolante) de Geire of Guelders
Yolande (Jolante) de Geire of was born after 1072.  She died after 1107.