Ferdinand II (March 10, 1452 – January 23, 1516), called the Catholic, is King of Sicily from 1468 and King of Aragon from 1479 until his death.

As a consequence of his marriage to Isabella I, he is King of Castile jure uxoris as Ferdinand V from 1474 until her death in 1504.

He is recognized as regent of Castile for his daughter and heir, Joanna, from 1508 until his own death.

In 1504, after a war with France, he becomse King of Naples as Ferdinand III, reuniting Naples with Sicily permanently and for the first time since 1458.

In 1512, he becomes 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 sponsor the first voyage of Christopher Columbus in 1492.

That year he also fights the final war with Granada, which expunges the last Islamic state on Iberian soil, thus bringing to a close the centuries-long Reconquista.

At his death he is succeeded by Joanna, who corules with her son, Charles V, over all the Iberian kingdoms save Portugal.