Geoffrey FitzPiers De Mandeville
Geoffrey FitzPiers was born in 1162 in Northhampton, England.  He died at the age of 51 on October 14th, 1213 in Walden, Essex, England.

 Beatrix De Saye
Beatrix was born in 1169 in England.

 Maud De Mandeville
Maud was born about 1178.  She died on August 27th, 1237.

 Anne De Mandeville
Anne was born in 1197.