Prime Minister of Thailand sixteen out of twenty-nine, including the incumbent General Prayut Chan-o-cha. Military dominance began with the country's second Prime Minister, Phot Phahonyothin, who ousted his civilian predecessor in a coup in 1933. The longest serving Prime Minister was Field Marshal Plaek Pibulsonggram at 14 years, 11 months and 18 days. The shortest was Tawee Boonyaket at just 18 days. Nine were removed by coups d'état, three were disqualified by court order, and eleven resigned from office. The youngest ever to occupy office was M.R. Seni Pramoj at 40 years old. Thailand received its first female prime minister, Yingluck Shinawatra, in 2011.
Prime Minister of the Netherlands year the Constitution of the Netherlands was amended to make ministers responsible to the States General rather than – as hitherto – being responsible to the King, who acted as the leader of cabinet. Until 1901 the position chair of the Council of Ministers officially rotated between ministers. Between 1901 and 1945 the position formally still rotated but prominent politicians were able to claim a rotation period of four years. In 1937 a separate Ministry of General Affairs was instituted which was informally linked to the Prime Minister. Barend Biesheuvel (1971–1973) was the last Prime Minister who was not the