Joan, Countess of Ponthieu Spanish queen consort (1220-1279) (1220–1279) Parents Marie, Countess of Ponthieu Simon, Count of Ponthieu Children Eleanor of Castile Ferdinand, Count of Aumale Simon of Castille Juan de Castilla Luigi di Castiglia Siblings Philippa of Dammartin Agathe de Dammartin Mathilde de Dammartin Marie de Dammartin Partners Ferdinand III of Castille Jean de Nesle, Sire de Falvy et de la Herelle
