Member of a sect of Islam who believe that Ali was Muhammad's first true successor. They are doctrinally opposed to the Sunni Muslims. Holy men have greater authority in the Shi'ite sect than in the Sunni sect. They are prominent in Iran and Lebanon and are also found in Iraq and Bahrain. Breakaway sub-sects include the Alawite sect, to which the ruling party in Syria belongs; and the Ismaili sect, with the Aga Khan IV (1936-) as its spiritual head.