Count Of Dammartin Simon II
Count Of Dammartin was born about 1180 in Dammartin, Seine-et-Marne, France.  He died on September 21st, 1239 in Abbeville, Somme, France.

 of Ponthieu Countess of Ponthieu Marie Jeanne
of Ponthieu Countess of Ponthieu was born on April 17th, 1199 in Aumale, Seine-Maritime, France.  She died at the age of 51 in September 1250.¹ 

 Jeanne Of Dammartin Of Ponthieu
Jeanne Of Dammartin Of was born about 1216 in Dammartin, Seine-et-Marne, France.  She died in Abbeville, Somme, France.