_Hugues III CHÂTEAUDUN _+ | _Geoffrey III CHÂTEAUDUN _| | (.... - 1145) | | |_Agnes of FRÉTEVAL _____ | _Hugues IV CHÂTEAUDUN ______| | (.... - 1180) | | | _________________________ | | | | |_Helvise of MONDOUBLEAU ___| | | | |_________________________ | | |--Geoffrey IV CHÂTEAUDUN | (.... - 1176) | _________________________ | | | ___________________________| | | | | | |_________________________ | | |_Marguerite of SAINT-CALAIS _| | | _________________________ | | |___________________________| | |_________________________