Abd ar-Rahman III (emir and caliph of Córdoba)
Abd ar-Rahman III, 891–961, Umayyad emir (912–29) and first caliph (929–61) of Córdoba. When he succeeded to the throne, the Spanish emirate was reduced to Córdoba and its environs and beset with tribal warfare. Abd ar-Rahman recovered the lost provinces, consolidated the central government, and created internal peace and prosperity. He built up a strong army and navy and waged war successfully against the Fatimids in N Africa and the Christian kings of León. He made Córdoba one of the greatest cities in the West.
See R. Knapp, Roman Córdoba (1983).