Original: Mohammad Rez Sh h Pahlavi , Shah of Iran , ( Persian : ; 26 October 1919 -- 27 July 1980 ) , was the emperor of Iran from 16 September 1941 , until his overthrow by the Iranian Revolution on 11 February 1979 .
Simplified: Mohammad Reza Pahlavi ( Persian : , October 16 , 1919 - July 27 , 1980 ) was the last Shah of Iran .