Family: Count of Pointhieu Simon de Dammartin / Countess of Montreuil Marie de Ponthieu Montgomerie (F837)
m. Bef Sep 1208
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Male
Count of Pointhieu Simon de Dammartin
Birth 1180 Death 21 Sep 1239 France 
Burial Marriage Bef Sep 1208 [1, 2] Father Alberic II de Dammartin | F836 Group Sheet Mother Mahaut de Clermont | F836 Group Sheet
Female
Countess of Montreuil Marie de Ponthieu Montgomerie
Birth 17 Apr 1199 Aumale, Seine-Maritime, Haute-Normandie, France Death Sep 1251 Abbeville, Somme, Picardie, France Burial Father Count of Ponthieu and Montgomerie William IV Talvas Montgomerie | F2794 Group Sheet Mother Countess de Vexin Alix Capet | F2794 Group Sheet
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Sources - [S323] thePeerage.com, (Name: thePeerage.com;), Montgomerie de Dammartin, Marie #003671 Accessed KRM 7 Nov 2020 2:14pm http://thepeerage.com/p368.htm#i3671.
http://thepeerage.com/p368.htm#i3671 - [S323] thePeerage.com, (Name: thePeerage.com;), de Dammartin, Simon #101877 Accessed KRM 7 Nov 2020 2:14pm http://thepeerage.com/p10188.htm#i101877.
http://thepeerage.com/p10188.htm#i101877
- [S323] thePeerage.com, (Name: thePeerage.com;), Montgomerie de Dammartin, Marie #003671 Accessed KRM 7 Nov 2020 2:14pm http://thepeerage.com/p368.htm#i3671.