There has not been a government of England since 1707, when the Acts of Union 1707, putting into effect the terms of the Treaty of Union, joined England and Scotland to form the Kingdom of Great Britain. Before the union England was ruled by its monarch and the Parliament of England. Today England is governed directly by the Parliament of the United Kingdom, although other countries of the United Kingdom have devolved governments. In the House of Commons which is the lower house of the British Parliament based at the Palace of Westminster, there are 532 Members of Parliament (MPs) for constituencies in England, out of the 650 total.