Alfonso XI of Castile

Alfonso XI led a Castilian-Portuguese coalition to a decisive victory over the Marinid Sultanate of Morocco and the Emirate of Granada at the Battle of the Salado River. This victory ended the last major North African invasion of Iberia.

Alfonso XI besieged and captured the port city of Algeciras from the Marinids after a two-year siege. The conquest cut off the main supply route from North Africa to Granada and was a major step in the Reconquista.

Alfonso XI issued the Ordenamiento de Alcal

Alfonso XI died of the Black Death during the Siege of Gibraltar. His death left his young son Peter I as king and led to a period of political instability and civil war in Castile.