Parliament of England 1657 he had the Parliament of Scotland unified with the English Parliament. In terms of the evolution of parliament as an institution, by far the most important development during the republic was the sitting of the Rump Parliament between 1649 and 1653. This proved that parliament could survive without a monarchy and a House of Lords if it wanted to. Future English monarchs would never forget this. Charles I was the last English monarch ever to enter the House of Commons. Even to this day, a Member of the Parliament of the United Kingdom is sent to Buckingham Palace as
House of Commons of the United Kingdom (see qualifications below), his or her seat falls vacant. It is also possible for the House of Commons to expel a member, but this power is exercised only in cases of serious misconduct or criminal activity. In each case, the vacancy is filled by a by-election in the constituency, with the same electoral system as in general elections. The term "Member of Parliament" is normally used only to refer to members of the House of Commons, even though the House of Lords is also a part of Parliament. Members of the House of Commons may use the post-nominal letters "MP".