Constitutional monarchy Act 1689, which placed similar limits on the Scottish monarchy. Although Queen Anne was the last monarch to veto an Act of Parliament when, on 11 March, 1708, she blocked the Scottish Militia Bill, Hanoverian monarchs continued to selectively dictate government policies. For instance King George III constantly blocked Catholic Emancipation, eventually precipitating the resignation of William Pitt the Younger as prime minister in 1801. The sovereign's influence on the choice of prime minister gradually declined over this period, King William IV being the last monarch to dismiss a prime minister, when in 1834 he removed Lord Melbourne as a
Queen of Nigeria monarchy, and adopted the President of Nigeria as head of state, on 1 October 1963. The Queen visited Nigeria twice: 28 January–16 February 1956 and 3–6 December 2003, the latter time to attend the Commonwealth Heads of Government Meeting 2003. Queen of Nigeria From 1960 to 1963, Elizabeth II was Queen of Nigeria: Nigeria was an independent constitutional monarchy. She was also the monarch of the other Commonwealth realms, including the United Kingdom. Nigeria became independent on 1 October 1960 under the Parliament of the United Kingdom's Nigeria Independence Act. The Queen was head of state, though her constitutional roles