Roger II De Montgomery
Roger II was born before 1066.  He died on August 1st, 1095 in Bur Shrewsbury Abbey.

 Mabile De Belleme
She died in December 1082 in Normandy.

 Arnulf "Cimbricus" De Montgomery
Arnulf "Cimbricus" was born before 1090.  He died about 1130.