The Roundheads defeat the Cavaliers at the Battle of Maidstone in the Second English Civil War.

The Battle of Maidstone (1 June 1648) was fought in the Second English Civil War and was a victory for the attacking Parliamentarian troops over the defending Royalist forces.

Roundheads were the supporters of the Parliament of England during the English Civil War (1642–1651). Also known as Parliamentarians, they fought against King Charles I of England and his supporters, known as the Cavaliers or Royalists, who claimed rule by absolute monarchy and the principle of the divine right of kings. The goal of the Roundhead party was to give the Parliament supreme control over executive administration of the country/kingdom.