Ct. Geoffroi II of Perche
Geoffroi II of Perche was born about 1042 in Perche, Normandy, France.  He died in October 1100.

 Beatrix of Montdidier
Beatrix of Montdidier was born about 1043 in Montdidier, Picardie, France.  She died after 1109.

 Julienne of Perche
Julienne of Perche was born about 1072 in , Normandy, France.  She died after 1109.

 Margaret of Perche
Margaret of Perche was born about 1082 in , Normandy, France.  She died in 1156.

 Ct. Routrou II of Perche
Routrou II of Perche was born about 1085.  He died on May 8th, 1144 in Rouen, France.