Simon De Dammartin of Aumaals
Simon De Dammartin of was born about 1172 in Dammartin, Seine-et-Marne, France.  He died on September 21st, 1239 in Abbeyville, Somme, France.

 Maria (Jeanne) De Ponthieu
Maria (Jeanne) was born on April 17th, 1199 in Aumale- Seine-Maritime, France.  She died at the age of 51 in September 1250 in Abbeyville, Somme, France.

 Jeanne De Dammartin
Jeanne was born about 1216 in Dammartin, Seine-et-Marne, France.¹   She died on March 15th, 1279 in Abbeyville, Somme, France.¹