Attention: Age at marriage (??-06-1308) below 16 years (15).
She is married to Charles (Count of Valois and Anjou) Valois Capet.
They got married June 1308 at Poitiers, Vienne, Poitou-Charentes, Kingdom of France, she was 15 years old.Source 1
Child(ren):
Record for Charles of Valois Capet, Count of Valois/ Ancestry.com
http://trees.ancestry.com/pt/AMTCitationRedir.aspx?tid=0&pid=5869
Name: Mathilde de Valois death date: 3 October 1358 burial place: Paris, City of Paris, Île-de-France, France birth date: 1293 birth place: Dommartin-Dampierre, France/ Ancestry.com