King of Naples from 25 January 1494 to 22 February 1495 with the title King of Naples and Jerusalem. As Duke of Calabria he was a patron of Renaissance poets and builders during his tenure as the heir to the throne of Naples. In 1463, when Alfonso was fifteen, his great-uncle Giovanni Antonio del Balzo Orsini, Prince of Taranto, died, and he obtained some lands from the inheritance. Alfonso had shown himself a skilled and determined soldier, helping his father in the suppression of the Conjure of the Barons (1485) and in the defence of the Kingdom's territory against the Papal claims.
