Ferdinand of Aragon may refer to: Ferdinand of Aragon – Lord of Albarracín, illegitimate son of Peter III of Aragon with Inés Zapata. Ferdinand I of Aragon, also known as Ferdinand of Antequera (r. 1412–1416) Ferdinand II of Aragon, who married Isabella of Castile to become king of Spain, (1452–1516) Ferdinand of Aragón, Duke of Calabria (1488–1550) Ferdinand I of Naples, Also knows as Ferrante, King of Naples (r. 1458–1494)