Derby was lord‐lieutenant of Lancashire, lord of the Isle of Man, and a leading royalist peer during the civil wars. In 1642 he raised over 6,000 men in the county for the king. He spent most of the next seven years on the Isle of Man, emerging in 1644 to fight at Marston Moor. In 1650 he declared for Charles II and brought a small contingent to the mainland, but was defeated at Wigan Lane (25 August 1651). Derby fought at Worcester (September 1651), was captured, and beheaded at Bolton, a town which he had sacked in 1644, killing 1,600 civilians.
Subjects: British History.