Mahaut de Clermont Peerage person ID=3702 (b. 1138) Parents Clemence of Bar Renaud II, Count of Clermont Children Aelis de Dammartin Julia de Dammartin Renaud I, Count of Dammartin Simon, Count of Ponthieu Agnès de Dammartin Siblings Alberic II, Count of Dammartin Philippe de Vexin Alberic III of Dammartin Raoul I de Clermont Simon van Clermont-Beauvais Margaret of Clermont Partners Alberic III of Dammartin