The English Civil War consisted of a series of armed conflicts and political machinations that took place between Parliamentarians (known as Roundheads) and Royalists (known as Cavaliers) between 1642 and 1651. The first (1642–1646) and second (1648–1649) civil wars pitted the supporters of King Charles I against the supporters of the Long Parliament, while the third war (1649–1651) saw fighting between supporters of King Charles II and supporters of the Rump Parliament. The Civil War ended with the Parliamentary victory at the Battle of Worcester on 3 September 1651.