William de Tregoz , of Billingford
William de was born about 1085 in Troisgots, Manche, Normandy, France.  He died after 1140 in Billingford, Norfolk, England.

 Agnes
Agnes was born about 1100 in Lydiard Tregoze, Cricklade, Wiltshire, England.  She died after 1197 in Billingford, Norfolk, England.

 Geoffrey de Tregoz , of Goring, Sir
Geoffrey de was born before 1118 in Goring by Sea, East Preston, Sussex, England.  He died before 1175.

 William de Tregoz , Sir Knight
William de was born about 1125 in Troisgots, Manche, Normandy, France.  He died after 1172 in Lydiard Tregoze, Cricklade, Wiltshire, England.