List of Prime Ministers of Queen Elizabeth II

	Portrait	Name
Took office	Left office
		Sir Winston Churchill	26 October 1951	7 April 1955
		Sir Anthony Eden	7 April 1955	10 January 1957
		Harold Macmillan	10 January 1957	19 October 1963
		Sir Alec Douglas-Home	19 October 1963	16 October 1964
		Harold Wilson	16 October 1964	19 June 1970
		Edward Heath	19 June 1970	4 March 1974
		Harold Wilson	4 March 1974	5 April 1976
		James Callaghan	5 April 1976	4 May 1979
		Margaret Thatcher	4 May 1979	28 November 1990
		John Major	28 November 1990	2 May 1997
		Tony Blair	2 May 1997	27 June 2007
		Gordon Brown	27 June 2007	11 May 2010
		David Cameron	11 May 2010

List of Government Departments

Ministerial departments

· Attorney General's Office

· Cabinet Office

· Department for Business, Innovation and Skills

· Department for Communities and Local Government

· Department for Culture, Media and Sport

· Department for Education

· Department for Environment, Food and Rural Affairs

· Department for International Development

· Department for Transport

· Department for Work and Pensions

· Department of Energy and Climate Change

· Department of Health

· Foreign and Commonwealth Office

· Her Majesty's Treasury

· Home Office

· Ministry of Defence

· Ministry of Justice

· Northern Ireland Office

· Office of the Advocate General for Scotland

· Office of the Leader of the House of Commons

· Office of the Leader of the House of Lords

· Scotland Office

· UK Export Finance

· Wales Office

Non-ministerial departments

• Charity Commission for England and Wales
• Commissioners for the Reduction of the National Debt
• Competition and Markets Authority
• Crown Prosecution Service
• Food Standards Agency
• Forestry Commission
• Government Actuary's Department
• Her Majesty's Land Registry
• Her Majesty's Revenue and Customs
• National Crime Agency
• Office for Standards in Education, Children's Services and Skills
• Office of Fair Trading
• Office of Gas and Electricity Markets
• Office of Qualifications and Examinations Regulation
• Office of Rail Regulation
• Ordnance Survey
• Public Works Loan Board
• Serious Fraud Office
• Supreme Court of the United Kingdom
• The National Archives
• Treasury Solicitor's Department
• UK Statistics Authority
• UK Trade & Investment
• Water Services Regulation Authority

House of Windsor

The house name Windsor was adopted in 1917, during World War I. It was changed from Saxe-Coburg-Gotha because of wartime anti-German sentiment in the United Kingdom.