Carthusian Martyrs of London were canonized by Pope Paul VI in 1970. There is a memorial plaque at Charterhouse Square. A private commemoration ceremony takes place each year at the Carthusian martyrs plaque on 4 May, the date of John Houghton's execution. There are paintings of four of the Carthusian martyrs - Blessed William Exmew, Blessed Thomas Johnson, Blessed Richard Bere, and Blessed Thomas Green - at the Certosa di Bologna. Vincente Carducho was employed by the monks of the Chartreuse of el Paular to decorate the great cloister with 54 canvases of historical figures. Twenty-seven represent the life of St. Bruno, twenty-seven are
Denis the Carthusian he experiences a vehement love from his contemplation of the divine. This type of experience can only come from supernatural wisdom, supernaturally bestowed. Denys the Carthusian was said to have reached the Unitive stage, being privileged to divine ecstatic experiences lasting hours at a time. While still a novice he had ecstasies which lasted two or three hours, and later on they lasted sometimes seven hours and more. During his ecstasies many things were revealed to him which he made known only when it could profit others, and the same may be said of what he learnt from the souls