Forneus is a Marquis of the Ars Goetia, ruling 29 legions of spirits.
| Rank | Marquis |
|---|---|
| Legions | 29 |
| Powers | Languages, Eloquence, Knowledge & sciences |
| Enn (modern chant) | «Senan okat ena Forneus ayer» |
| Sources | Ars Goetia, Pseudomonarchia |
| Seal no. | 30 / 72 |
| External IDs | Wikidata · Wikipedia |
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A sea monster.

He teaches rhetoric and all languages, gives good fame, and makes one loved by friends and enemies alike.
Forneus appears in Weyer (1577) as a marquis and sea monster who teaches rhetoric and languages. The Ars Goetia incorporates him as spirit 30 and preserves his social profile: good fame and the love of friends and enemies.
Forneus's main seal follows the printed Mathers–Crowley (1904) form; the Sloane MS 2731 manuscript facsimile is shown separately for comparison.
The main image and SVG/PNG downloads reproduce the printed form of S. L. MacGregor Mathers and Aleister Crowley's 1904 edition, using the normal vector pack documented on Wikimedia Commons (public domain/CC0). The Sloane MS 2731 facsimile remains separate for comparing manuscript variants; it is not used as the main image.
The FULL manuscript facsimile («Lemegeton, Clavicula Salomonis», Sloane MS 2731) is in our library; the original is held at the British Library (Sloane MS 2731).
According to the Ars Goetia, the operation is the same for all 72 spirits:
The ancient source shows him as a great sea monster; his office is to make one admirable in rhetoric, give knowledge of languages, good reputation, and favor even from enemies. It records for him no hour, orientation, offering, or particular defense.
Source: Ars Goetia (17th c.); already in Weyer’s Pseudomonarchia Daemonum, 1577
The common Goetic operation also adds, when needed: to constrain a resisting spirit (Wellcome MS 110, c74–c78), to show it the Pentacle of Solomon once manifested (Ars Theurgia-Goetia), to work in its planetary hour and day (by rank), and finally to give it licence to depart —and never before (Wellcome MS 110, c53). Practise the full rite at The Practitioner's Table.
Enn (modern chant): «Senan okat ena Forneus ayer»
Source: Enn of modern demonolatry (lists disseminated by S. Connolly, The Complete Book of Demonolatry, 2006)
In modern uses he is worked with for reputation, diplomacy, linguistic learning, and the softening of hostile relations.
In contemporary demonolatry, practitioners describe Forneus's presence as fluid, calming, and of a deeply intellectual character, consistently aligning with his aquatic symbolism. He is usually worked with to gain eloquence in communication, resolve legal disputes favorably, or pacify tense environments, as he is perceived as capable of transforming hostility into mutual respect.
Personal gnosis (UPG): how contemporary practitioners say they experience it. This is subjective experience, not a historical source or doctrine; it does not come from the ancient grimoires and may not be real.
Source: S. Connolly, 'The Daemonolatry Goetia' (2010); reportes de gnosis personal (UPG) en la corriente demonólatra moderna.
Forneus is one of the 72 spirits catalogued in the Ars Goetia (the first book of the Lemegeton, 17th c.) and in Weyer's Pseudomonarchia Daemonum (1577); it is listed with the rank of Marquis. It is not a deity or a biblical figure: it is an entry in these historical spirit-catalogues.
The seal image of Forneus that we display and offer for download follows the printed Mathers–Crowley (1904) form, using the normal vector pack documented on Wikimedia Commons (public domain/CC0). The Sloane MS 2731 manuscript facsimile is provided separately because Lemegeton witnesses preserve variants.
Forneus is a Marquis, ruling 29 legions of spirits according to the Lesser Key of Solomon.
According to the ancient sources (the Lemegeton, the Pseudomonarchia Daemonum), Forneus is summoned with the goetic rite: the Circle and the Triangle of Art are traced, its seal is engraved and worn, the candles are lit and the conjuration is spoken by the divine names; if it delays, it is constrained, and at the end it is given the licence to depart. This is historical-documentary material, not a how-to for real summoning.
He teaches rhetoric and all languages, gives good fame, and makes one loved by friends and enemies alike.
Forneus appears in Weyer (1577) as a marquis and sea monster who teaches rhetoric and languages. The Ars Goetia incorporates him as spirit 30 and preserves his social profile: good fame and the love of friends and enemies.
The enn of Forneus circulating today is «Senan okat ena Forneus ayer». It is a MODERN demonolatry chant (late 20th c.); it does not appear in the old grimoires.
→ Where does «your demon by birthdate» come from? See how the different systems distribute the 72 spirits: Goetia Correspondences.
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