High Quality Content by WIKIPEDIA articles! Ferdinand II (Fernando, in Portuguese) (1430-1483) was the older son of Fernando I, 2nd Duke of Braganza and of his wife, Doña Joana de Castro. Fernando was most appreciated by King Afonso V of Portugal, and he always escorted the King on his different incursions into Morocco, participating in several conquests and expeditions. The King rewarded him, granting him, in 1464) the new title of Count of Guimarães. This title was soon (1475) upgraded to Duke of Guimarães. He also took part in the War of the Castilian Succession. Following King Henry IV of Castile's death, his daughter and heir, Joanna La Beltraneja, married to Afonso V of Portugal, was proclaimed Queen of Castile but she had the opposition of her aunt (the future queen Isabella I). The Portuguese invaded Castile and, during the Battle of Toro, Fernando II of Braganza was responsible for the Queen s safety. When his father died (1478), Fernando II inherited the Dukedom of Braganza, and his House became the most rich and powerful among the Iberian aristocracy.