Lemegeton, also known as The Lesser Key of Solomon the King or Clavicula Salomonis Regis, is a 17th century demonology Grimoire written by an anonymous author. It contains names of spirits/demons, other sacred names, sigils/seals, invocations and summoning techniques, spells, prayers, rituals and occult knowledge that has been obtained by the author, material which dates between the early 15th and the late 17th century. The Grimoire is divided in five parts called The Books. These are: Ars Goetia (or Goetia), Ars Theurgia Goetia (or Theurgia), Ars Paulina, Ars Almadel and Ars Notoria.