English Civil War: Bolton Massacre by Royalist troops under the command of James Stanley, 7th Earl of Derby.

The English Civil War or Great Rebellion was a series of civil wars and political machinations between Royalists and Parliamentarians in the Kingdom of England from 1642 to 1651. Part of the wider 1639 to 1653 Wars of the Three Kingdoms, the struggle consisted of the First English Civil War and the Second English Civil War. The Anglo-Scottish War of 1650 to 1652 is sometimes referred to as the Third English Civil War.

The Storming of Bolton, sometimes referred to as the "Bolton massacre", was an event in the First English Civil War which happened on 28 May 1644. The strongly Parliamentarian town was stormed and captured by Royalist forces under Prince Rupert. It was alleged that up to 1,600 of Bolton's defenders and inhabitants were slaughtered during and after the fighting. The "massacre at Bolton" became a staple of Parliamentarian propaganda.

The term Cavalier was first used by Roundheads as a term of abuse for the wealthier royalist supporters of Charles I of England and his son Charles II during the English Civil War, the Interregnum, and the Restoration. It was later adopted by the Royalists themselves. Although it referred originally to political and social attitudes and behaviour, of which clothing was a very small part, it has subsequently become strongly identified with the fashionable clothing of the court at the time. Prince Rupert, commander of much of Charles I's cavalry, is often considered to be an archetypal Cavalier.

James Stanley, 7th Earl of Derby was an English nobleman, politician, and supporter of the Royalist cause in the English Civil War. Before inheriting the title in 1642 he was known as Lord Strange. He was feudal Lord of the Isle of Man, where he was known as "Yn Stanlagh Mooar".