Michael Scot
The oldest known portion of the "Lemegeton", the "Ars Notoria" (or "Notory Art") was first mentioned by Michael Scot in 1236 (and thus was written earlier). The "Ars Notoria" contains a series of prayers (related to those in "The Sworn Book of Honorius") intended to grant eidetic memory and instantaneous learning to the magician. Some copies and editions of the "Lemegeton" omit this work entirely; A. E. Waite ignores it completely when describing the "Lemegeton". It is also known as the "Ars Nova".