Roundhead was the name given to the supporters of the Parliament of England during the English Civil War. Also known as Parliamentarians, they fought against Charles I of England and his supporters, the Cavaliers or Royalists, who claimed rule by absolute monarchy and the divine right of kings. The goal of the Roundhead party was to give the Parliament supreme control over executive administration.

Roundhead was the name given to the supporters of the Parliament of England during the English Civil War. Also known as Parliamentarians, they fought against Charles I of England and his supporters, the Cavaliers or Royalists, who claimed rule by absolute monarchy and the divine right of kings. The goal of the Roundhead party was to give the Parliament supreme control over executive administration.