Hugh De Grandmesnil
Hugh was born in 1024.^1 1 

 Alice De Beaumont
Alice was born in 1034 in Beaumont-Sur-Oise,France.¹   She died at the age of 57 on July 11th, 1091 in Rouen,Seine-Inferieure,France.

 Robert II De Grandmesnil
Robert II was born in 1049.¹ 

 William De Grandmesnil
William was born in 1054.¹ 

 Ivo (Ives) De Grandmesnil
Ivo, known as Ives, was born in 1064.¹ 

 Agnes De Grandmesnil
Agnes was born in 1070 in Grentemesnil,France.