Gatehouse Prison was a prison in Westminster, built in 1370 as the gatehouse of Westminster Abbey. It was first used as a prison by the Abbot, a powerful churchman who held considerable power over the precincts and sanctuary. It was one of the prisons which supplied the Old Bailey with information on former prisoners (such as their identity or prior criminal records) for making indictments against criminals.[1]
Forsythe, James Neild (2000). State of the Prisons in England, Scotland, and Wales, Not for the Debtor Only, But for Felons Also, and Other Less Criminal Offenders. London: Routledge. ISBN0-415-23127-2.
Tanner, Lawrence Edward (1923). Westminster School, Its Buildings and Their Associations. London: Philip Allan.