Robert de Grentmesnil
Robert was born about 0990 in Grentemesnil, Calvados, France.  He died on June 17th, 1039.

 Hawise d'Eschauffon
Hawise was born about 1007 in Echafour, Normandy.

 Robert II de Grentmesnil
Robert II was born about 1024.

 I Hugh
I was born about 1030 in Grentemesnil, Calvados, France.  He died in Leicestershire, England.

 Adeliza de Grentmesnil
Adeliza was born about 1032.

 Arnold de Grentmesnil
Arnold was born about 1034.