found: Britannica Micro.(Umayyads, or Omayyads, first great Muslim dynasty to rule the Empire of the Caliphate (AD 661-750); the last Umayyad, Marwān II was defeated at the Battle of the Great Zāb River (750) ... ʻAbd ar-Raḥmān ... established himself as Muslim ruler in Spain (756), founding the dynasty of the Umayyads of Córdoba)
found: American Heritage dict.(Umayyad or Ommiad; also Omayyad)
found: Random House(Omayyad; also Ommiad, Umayyad)
found: Web. 3(Umayyad or Omayyad; also Ommiad; ruled in Spain, A.D. 756 to 1031)
found: Enc. of Islam(Umaiyads (Banū Umaiya), dynasty of the caliphs from 41-132 A.H. = 661-750 A.D.)
found: Enc. of Asian hist., 1988(Umayyad dynasty)