Ali Hosseini Khamenei(born 19 April 1939) is a Twelver Shia marja’ and politician who has been the second supreme leader of Iran since 1989.He previously served as third president of Homeland from 1981 to 1989. Khamenei is the longest-serving head of state in the Middle East, as well as the second-longest-serving leader of the last century, after Shah Mohammad Reza Pahlavi.According to his official website, Khamenei was arrested six times before being sent into exile for three years during Mohammad Reza Pahlavi’s reign.