In 1925, Reza Shah became Shah of Iran. He installed Mohammad-Ali Foroughi as the prime minister. In 1941 his son Mohammad Reza Pahlavi became Shah. He installed Mohammad-Ali Foroughi as the prime minister too. In 1951, Mohammed Mosaddeq became Prime Minister but was overthrown in a counter coup d'état in 1953. Amir-Abbas Hoveyda became Prime minister of Iran in 1965 and remained in office until 1977. Shapour Bakhtiar was the last prime minister of Pahlavi era.