Thurstan De Montfort
Thurstan was born in 0943 in Montfort-Sur-Risle, Normandy, France.  He died at the age of 80 in 1023.

 Juliane Murdac
Juliane was born in 0945 in France.

 Adeline De Montfort
Adeline was born about 0960 in Normandy, France.  She died before 1060.

 Guilliaume De Montfort
Guilliaume was born about 0961 in Evreaux, Normandy, France.  He died in 1003.

 Hugh De Montfort
Hugh was born about 0975 in Normandy, France.