Alexander IV
Alexander IV granted an indulgence in 1258 to those who visited his tomb. His canonization was celebrated under Alexander IV on 18 June 1259. His liturgical feast is affixed to the date of his death, as is the norm. Pope Gregory XIII issued another indulgence to people who did the same later in 1575. King Philip V prevailed upon Pope Clement XII to include the late monk's feast in the Roman calendar on 13 March 1736.