The first Aragonese sovereign of Naples, Alfonso of Trastamara also known as the Magnanimous. He was born in Medina del Campo the 24th of February 1396. He took the throne of Aragon when his father Ferdinand died in 1416, while his brothers took care of consolidating the control of the dynasty in Castile, Alfonso asked to be financed from the Cortes for the expedition of the conquest of Sardinia and for an unsuccessful attempt to occupy Corsica.