Records of Prime Ministers of the United Kingdom transitions between reigns, eight Prime Ministers each served under two sovereigns: George III had 14 Prime Ministers serving during his 59-year reign (reigned 1760–1820), beginning with the Duke of Newcastle. The last incumbent, Lord Liverpool, was the only one appointed by his son (the Prince Regent) during the father's final incapacity to rule. In downward numerical order, numbers of Prime Ministers in office during other reigns are: Only six Prime Ministers came to serve office under sovereigns in whose own reigns they were born. The present Prime Minister, Theresa May, is the third Prime Minister to have been born in
1957 Commonwealth Prime Ministers' Conference Multilateral nuclear disarmament negotiations were also discussed. This was the first Commonwealth Prime Ministers' Conference attended by Ghana, which had attained independence in March 1957. 1957 Commonwealth Prime Ministers' Conference The 1957 Commonwealth Prime Ministers' Conference was the ninth Meeting of the Heads of Government of the Commonwealth of Nations. It was held in the United Kingdom in June 1957, and was hosted by that country's Prime Minister, Harold Macmillan. The new Canadian prime minister, John Diefenbaker, proposes the intensification of trade relations within the Commonwealth. His call for an Empire Trade Conference were resisted by the British government which