Abd ar-Rahman II
Ramiro's most important confrontation with the Muslim kingdoms of Iberia was not a success. Emir Abd ar-Rahman II of Córdoba likewise had to face Viking invaders, as well as internal rebellions led by Musa ibn Musa, of the Banu Qasi family. Ramiro took advantage of the temporary respite to repopulated the city of León. This particular attempt at repopulation was short-lived. Abd ar-Rahman II dispatched both the Vikings and the rebels, and in 846 sent an army led by his son (later Muhammad I of Córdoba), forcing the Christians to again evacuate León, which the Muslims then burned. The city was not reoccupied until 856, under Ordoño I.