Deputy Prime Minister of New Zealand leader of a junior party. This occurred with Winston Peters, leader of New Zealand First, and Jim Anderton, leader of the Alliance. The post of deputy prime minister was formally established in 1954. Eighteen individuals have held the position (two of them doing so twice). Of those people, only Holyoake, Marshall, Watt, Muldoon, Palmer, Clark and English have eventually served as Prime Minister. The duties of the deputy prime minister are to act on behalf of the prime minister in his or her absence overseas or on leave. The deputy prime minister has always been a member of the Cabinet,
Prime Minister of Iran rarely used. The prime minister was usually called by the honorific title "hazrat-e ashraf". Reza Khan Sardar Sepah became the last prime minister of the Qajar dynasty in 1923. For a list of Iranian 'prime ministers' prior to 1907 see List of Premiers of Iran (1699-1907). 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