One Tuesday in January 1642 a frustrated King Charles I marched into the House of Commons and tried to take charge. He believed he had the right to rule England. MPs decided otherwise. The King sat in the Speaker's chair — and was ordered out. It was a definitive event leading to the English Civil War, a battle between the Crown and Parliament parodied in the best historical spoof of them all, 1066 and All That, as the "utterly memorable struggle between the Cavaliers (wrong but romantic) and the Roundheads (right but repulsive)".