Umayyad conquest of Hispania
Julian, Count of Ceuta (, , ("" ) was, according to some sources, a renegade governor, possibly a former "comes" in Byzantine service in Ceuta and Tangiers who subsequently submitted to the king of Visigothic Spain before secretly allying with the Muslims. According to Arab chroniclers, Julian had an important role in the Umayyad conquest of Hispania, a key event in the history of Islam, and in the subsequent history of what were to become Spain and Portugal.