Robert de Wavrin
Robert de was born about 1142 in Wavrin, Pas de Calais, Normandy, France.  He died in 1192.

 Adele de Gand
Adele de was born about 1144 in Ghent, Flanders now Belgium.

 Hildegarde de Wavrin
Hildegarde de was born in 1165 in Wavrin, Pas de Calais, Normandy, France.