Charles I of England
At the trial he was found guilty. He was decapitated in a public execution outside the Banqueting House of the palace at Whitehall. Some of the members of Parliament who were opposed to killing king Charles were purged, and from this time on, what was left of the Long Parliament became known as the Rump Parliament. This Parliament took complete power in England, and there was not a new king at all until 1660.