Robert de Mortain
Robert was born about 1037 in Mortaigne, Normandy, France.  He died on December 8th, 1095 in France.

 Matilda de Montgomery
Matilda was born about 1041 in Mortaigne, Normandy, France.  She died in 1107.

 Emma de Mortain
Emma was born about 1058 in Mortaigne, Normandy, France.