Robert de Grentmesnil
Robert was born in 1003 in Normandy, France.  He died at the age of 35 in 1038.

 Advise (Hawisa) de Escalfoy
Advise (Hawisa) was born in 1007 in Normandy, France.

 Hugh de Grentmesnil
Hugh was born in 1032 in Normandy, France.  Hugh is no longer alive.

 Robert de Grentmesnil
Robert was born in 1034 in Normandy, France.

 Arnold de Grentmesnil
Arnold was born in 1036 in Normandy, France.

 Adeliza de Grentmesnil
Adeliza was born about 1038 in Normandy, France.