Walter Giffard
Walter was born in 1030 in Longueville, Normandy, France.  He died at the age of 72 on July 15th, 1102 in Buckingham, England.

 Agnes De Ribemont
Agnes was born in 1055.  Agnes is no longer alive.

 Walter de Bolebec
Walter was born about 1110 in Buckingham, England.