William II de Mohun , Earl of Somerset, Sir
William II de was born before 1110 in Dunster, Williton, Somerset, England.  He died before 1155.

 Agnes de Gand
Agnes de was born about 1105 in Folkingham, Bourne, Lincolnshire, England.  Agnes de is no longer alive.

 William III de Mohun , Baron of Dunster
William III de was born before 1121 in Dunster, Williton, Somerset, England.  He died in 1176 in Bruton Priory, Somerset, England.