Leonor I of Navarre Queen regnant of Navarre (1426–1479) Parents Blanche I of Navarre John II of Aragon Children Marie de Foix Catherine of Foix, Countess of Candale Giacomo di Foix John of Foix, Viscount of Narbonne Margaret of Foix Gaston of Foix, Prince of Viana Pierre de Foix, le jeune Joan of Foix, Countess of Armagnac Siblings Martin of Aragon, Heir of Sicily Ferdinand II of Aragon Charles, Prince of Viana Blanche II of Navarre Joanna of Aragon, Queen of Naples Alfonso de Aragón y Escobar Leonor de Aragón Joan d'Aragó Partners Gaston IV of Foix