William DE MANDEVILLE
William was born about 1072.  He died about 1130.

 Margaret DE RIE
Margaret is no longer alive.

 Geoffrey DE MANDEVILLE
Geoffrey was born in 1092.¹   He died at the age of 52 on September 26th, 1144.  He was buried in 1144 in Temple Church, London, England.¹ 

 Walter DE MANDEVILLE
Walter was born about 1098.

 Beatrice DE MANDEVILLE
Beatrice was born in 1105.  She died at the age of 92 on April 19th, 1197.  She was buried in Walden Abbey.