The Carthusian Martyrs of London were the Carthusian monks of the London Charterhouse who were put to death by the English state from 4 May 1535 to 20 September 1537. The method of execution was typically hanging, disemboweling while still alive and quartering. Others were imprisoned and left to starve to death. The group also includes two monks who were brought to that house from the Charterhouses of Beauvale and Axholme and similarly dealt with. The total was 18 men, all of whom have been formally recognized by the Catholic Church as martyrs.