In April, at Olite, the French king had already agreed to acquiesce in John's plan to make Eleanor and her husband his heirs in Navarre and dispossess his eldest daughter, Blanche II of Navarre, who was given over to Eleanor and Gaston's custody.
Palacio Real de Olite, palace and castle of Kings of Navarre, constructed between 13th and 15th centuries at Olite, major seat of the royal court during the reign of Charles III