John Hampden was an English landowner and politician whose opposition to 'arbitrary' taxes imposed by Charles I made him a national figure. Allied with Parliamentarian leader John Pym, and cousin to Oliver Cromwell, he was among the Five Members whose attempted arrest in January 1642 helped to spark the First English Civil War. All 5 are commemorated at the State Opening of Parliament each year.

Charles I was King of England, Scotland, and Ireland from 27 March 1625 until his execution in 1649.