The Ars Theurgia-Goetia is the second book of the Lesser Key of Solomon (Lemegeton), between the Ars Goetia (the 72) and the Ars Paulina. Its spirits are not of the abyss but spirits of the air governed by the four cardinal points: «of a nature both good and evil», the text says. It is one of the Lemegeton layers we now map beyond Book 1 — and it hooks straight into what we already tell.
The Lemegeton (compiled in 17th-century England) gathers five books; the first is the Ars Goetia that structures this site. The second, the Ars Theurgia-Goetia, catalogues aerial, directional spirits: some are fixed to a point of the compass, others are «wandering» (moving from place to place). Each prince or duke has great hosts of servient spirits beneath him.
It is not born with the Lemegeton: its core —the names and the grid of the cardinal points— comes from the Steganographia of Johannes Trithemius (written c. 1499, printed 1606), a work that pretends to treat of cryptography while it describes a system of spirits by direction. The Lemegeton reorders and «goetises» it. It is therefore older than the goetic compilation beside it.
The structure rests on four Emperors, one per direction, each with princes, dukes and legions under him:
Beneath them, the chief spirits (some thirty-one) share out the intermediate directions, each with his servient dukes and his hour.
This is the hook we were after. The same directional grid that orders the Theurgia-Goetia is the one beating beneath the two streams: the four cardinal kings we already document —Oriens (E), Paymon (W), Amaymon (S) and Egyn (N)— are the goetic version of that same sublunar scheme. They are not the same names as Carnesiel or Caspiel, but they are the same map: spirit-kings shared out across the points of the world, under whom hang the feudal crowns (king, duke, marquis…) of the Goetia. The Theurgia-Goetia is that directional layer seen head-on.
This is the foundation page: the structure, the origin and the bridge. The full spirit-by-spirit edition —the ~31 chiefs with their servient dukes and their offices— is already transcribed from Sloane MS 3825 in our Library, the same honest transcription work we did for the Wellcome MS 110 and the Munich Handbook. We do not reproduce the copyrighted modern editions: the data comes from the ancient source or it is not put here. This page is its doorway; the complete edition lives in the Library.
→ See: The two streams · Livre↔Liber collation · Library
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