Ileson is a demon named in the Sacred Magic of Abramelin the Mage, where he appears among the spirits belonging to the extensive infernal hierarchy of the work.
According to the influential 1898 English translation produced by Samuel L. MacGregor Mathers, Ileson serves beneath the infernal ruler Astaroth. His position places him within the authority of one of the most prominent demonic figures encountered in Western grimoire tradition.
The spelling Ileson, however, appears to be peculiar to the Mathers translation. In other versions of the Sacred Magic of Abramelin, the same demon is named Iloson. Differences of this kind occur frequently throughout the Abramelin manuscripts, where unusual spirit names were transmitted through different languages and copied by scribes who did not always preserve identical forms.
Little individual information survives concerning Ileson beyond his name and allegiance. The text does not provide him with a developed mythology or clearly defined personality, making his position beneath Astaroth the principal surviving clue to his place within the magical system.
This apparent lack of detail should not make Ileson insignificant. The Abramelin presents an enormous spiritual hierarchy populated by many obscure beings whose identities survive only through their relationship with more powerful infernal rulers. Taken together, these spirits reveal a magical universe governed by authority and subordination rather than by random supernatural activity.
Ileson therefore represents one small fragment of a much greater structure. To understand him properly means looking beyond the individual name and recognising the hierarchy in which the Sacred Magic of Abramelin places him.
The Name Is Only the Entrance
Anyone can read the name Ileson and discover that he serves Astaroth. That takes seconds. What separates the serious occultist from the casual reader is the decision to continue beyond that point and understand why the grimoires constructed these enormous hierarchies in the first place.
The Occult World Mystery School exists for people who are no longer satisfied with scratching at the surface. Demonology becomes far more powerful when you stop treating demons as disconnected curiosities and begin understanding the magical worldview that placed them inside systems of authority. Black Magick demands exactly the same depth, because power cannot be understood by someone who continually refuses to look beneath appearances.
The occult has always attracted people who refused to accept that they must remain passive inside their own lives. They sought hidden knowledge because they understood that the person who comprehends power stands in a radically different position from the person who simply submits to whatever the world places before them.
There are thousands of spirits, gods, demons, magical systems, grimoires and forgotten traditions waiting beyond it, and you can spend years staring at their names without ever crossing the threshold.
Enter the Occult World Mystery School and cross it. Go deeply enough into Demonology and Black Magick that the occult becomes more than something fascinating to read, because if you genuinely intend to become the conscious authority within your own world, then remaining ignorant of power is no longer an option.
SEE ALSO:
- Astaroth
- Samuel Mathers
- List of Demons
- Demonology
SOURCE:
The Dictionary of Demons written by Michelle Belanger.
NOTE:
Edited and revised for the Web by Occult Media, the 21st of April 2021. We use British English spelling.

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