Philippa de Dammartin 
Philippa's father was Simon de Dammartin II de Aum,le Ct de Aum,le and her mother was Marie (Jeanne) de Ponthieu Cts de Ponthieu. Her paternal grandparents were Alberic II de Dammartin Ct de Dammartin and Maud de Clermont de Ponthieu; her maternal grandparents were Guillaume II Talvas de Ponthieu Ct de Ponthieu and Alice Capet de Ponthieu de France. She had three sisters named Johanna de Dammartin, Agatha and Marie.-
Ancestor Pedigree Chart
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- b.1135 in of Dammartin, Seine-Et-Marne, France d.19 Sep 1200 in London, England
- b.1180 in of Dammartin, Seine-Et-Marne, France d.21 Sep 1239 in Abbeville, France
- b.1138 in Ponthieu, Ain, France d.>Oct 1200
- b.1179 in of Normandy, France d.06 Oct 1221
- b.17 Apr 1199 in of Aum, le, Seine-Maritime, France d.Sep 1251 in Abbeville, France
- b.1170 d.>18 Jul 1218
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