Fernando II (or Ferdinand II), called the Catholic, was King of Sicily from 1468 and King of Aragón from 1479 until his death. As a consequence of his marriage to Isabella I, he was King of Castile jure uxoris as Ferdinand V from 1474 until her death in 1504. He was recognised as regent of Castile for his daughter and heir, Joanna, from 1508 until his own death. In 1504, after a war with France, he became King of Naples as Ferdinand III, reuniting Naples with Sicily permanently and for the first time since 1458. In 1512, he became King of Navarre by conquest.
Ferdinand is today best known for his role in inaugurating the discovery of the New World, since he and Isabella sponsored the first voyage of Christopher Columbus in 1492. That year he also fought the final war with Granada which expunged the last Islamic state on Iberian soil, thus bringing to a close the centuries-long Reconquista. At his death he was succeeded by Joanna, who co-ruled with her son, Charles V, over all the Iberian kingdoms save Portugal.