Ferdinand I of Aragon

Ferdinand I (Spanish: Fernando I; 27 November 1380 – 2 April 1416 in Igualada, Òdena) named Ferdinand of Antequera and also the Just (or the Honest) was king of Aragon, Valencia, Majorca, Sardinia and (nominal) Corsica and king of Sicily, duke (nominal) of Athens and Neopatria, and count of Barcelona, Roussillon and Cerdanya (1412–1416). He was also regent of Castile (1406–1416). Biography Ferdinand was born 27 November 1380 in Medina del Campo, the younger son of King John I of Castile and Eleanor of Aragon. On 15 August 1403 in Medina del Campo, Ferdinand founded a new order of knighthood, the Order of the Jar. In 1406, upon the death of his elder brother, King Henry III of Castile, Ferdinand declined the Castilian crown and instead, with Henry's widow Catherine of Lancaster, became coregent during the minority of his nephew John II of Castile. In this capacity he distinguished himself by his prudent administration of domestic affairs.