Alfonso V (c. 9947 August 1028), called the Noble, was King of León from 999 to 1028. Like other kings of León, he used the title emperor () to assert his standing among the Christian rulers of Spain. He succeeded his father, Bermudo II, in 999. His mother Elvira García and count Menendo González, who raised him in Galicia, acted as his co-regents. Upon the count's death in 1008, Alfonso ruled on his own.
Reign
Alfonso began the work of reorganizing the Christian kingdom of the northwest of the Iberian Peninsula after a most disastrous period of civil war and Arab inroads. Enough is known of him to justify the belief that he had some of the qualities of a soldier and a statesman.