The Grimoire of Pope Honorius

The Grimoire of Pope Honorius, or Le Grimoire du Pape Honorius, is an 18th to 19th century grimoire, claiming to be written by Pope Honorius III (1150 - 1227). It is unique among grimoires in that it was specifically designed to be used by a priest, and some of the instructions include saying a Mass. While its name is derived from the 13th century Grimoire of Honorius, its content is closer to later grimories like the Key of Solomon and Grimorium Verum.