William II De+ Mohun
William II De+ was born about 1096 in Dunster, Somerset, England.

 Agnes De+ Gand
Agnes De+ was born about 1110 in Folkingham, Lincolnshire, England.

 William III De+ Mohun
William III De+ was born before 1121 in Dunster, Somersetshire, England.  He died in 1176.