<Li> Legislative power is exercised by the Queen - in - Parliament, by and with the advice and consent of Parliament, the House of Lords and the House of Commons . </Li> <Li> Executive power is exercised by Her Majesty's Government, which comprises Ministers, primarily the Prime Minister and the Cabinet, which is technically a committee of the Privy Council . They have the direction of the Armed Forces of the Crown, the Civil Service and other Crown Servants such as the Diplomatic and Secret Services (the Queen receives certain foreign intelligence reports before the Prime Minister does). </Li> <Li> Judicial power is vested in the Judiciary, who by constitution and statute have judicial independence of the Government . </Li> <Li> The Church of England, of which the Monarch is the head, has its own legislative, judicial and executive structures . </Li>

How long has the british monarchy been in power