William De Mandeville
William was born in 1054 in Great Waltham, Essex, , England.¹   He died at the age of 76 in 1130 in Great Waltham, Essex, , England.¹ 

 Margaret Derie
Margaret was born in 1088 in , Oxfordshire, , England.²   She died at the age of 74 in 1162 in Rickling, Essex, , England.² 

 Beatrix Demandeville
Beatrix was born in 1105 in Mandeville, , Normandy, France.²   She died at the age of 92 on April 19th, 1197 in Rickling, Essex, , England.²