Jeanne of Ponthieu
Queen consort of Castile (1237 - 1252)
Also referred to as Jeanne of Dammartin she was called Juana by the Spanish
Queen Dowager (1252 - 1279)
Born (c1215) - Died (March 16, 1279) at Abbeville, France
Buried within the Abbey of Valloires
Father - Simon II of Dammartin
Mother - Matie of Ponthieu
Jeanne married firstly (1237) at Burgos to Ferdinando III of Castile (link)
Children :
Queen Jeanne married secondly Jean I de Nesle