Alberic III of Dammartin Count of Dammartin (1135–1200) Parents Clemence of Bar Alberic II, Count of Dammartin Children Julia de Dammartin Agnès de Dammartin Simon, Count of Ponthieu Aelis de Dammartin Renaud I, Count of Dammartin Siblings Éléonore de Dammartin Mahaut de Clermont Philippe de Vexin Partners Joan Basset Mahaut de Clermont