Geoffrey De Mandeville
Geoffrey was born in 1036 in Rycott, Oxford, England.¹   He died at the age of 49 in 1085 in Westminster Abbey, Westminster, Middlesex, England.¹ 

 Matilda De Biden
Matilda was born in 1134 in Rochefort, Namur, Wallonia, Belgium.¹   Matilda is no longer alive.

 Geoffrey Fitz Geoffrey
Geoffrey Fitz was born in 1156 in Teil.¹ 

 William Fitz Geoffrey
William Fitz was born in 1158 in Bedford, England.¹   He died at the age of 63 in 1221.¹ 

 Robert Fitz Geoffrey
Robert Fitz was born in 1160.¹