WilliamIII Count of Ponthieu, Sir - Pedigree | FamilyCentral
 Bef 1126 - 1164
 Bef 1108 -
Family Group
 1120 - 10 Aug 1153
 Abt 1124 - 16 Aug 1176
 Bef 1067 -
 Bef 1052 -
 Abt 1095 - 25 Oct 1154
 Abt 1103 - 3 May 1151
 Abt 1092 - 18 Nov 1154