Frasmiel is a demon who appears as a giant serpent with a human head. He’s a subordinate of the prince Uriel and infernal duke who commands 650 lesser demons. He’s known for being particularly evil and dishonest, like the other dukes who serve under Uriel.
Nure-onna (“wet woman”) is a yokai found in rivers and the ocean. It helps a fellow water monster, the ushi-oni, to hunt humans. It hands the victim a baby that turns into a heavy rock, pulling them into the water where the ushi-oni devours them. Image: Toriyama Sekien, 1776 & Sawaki Suushi, 1737
Hyosube is a Japanese yokai, that’s a cousin to the kappa. This child-sized river monster comes out at night and loves to gorge himself on eggplants, sometimes ravaging an entire field. If Hyosube laughs, and you join him, you will die. Image: Bakemono no e
Drawing of Dr. Peebles’ Demonism of the Ages burning, from the book Demonism of the Ages by Dr. Peebles (1904). Source: Wellcome Library
Depiction of The Devil (almost certainly) surrounded by demon names and corresponding sigils from “Le serpent de la Genèse” (The Serpent of Genesis) Volume 2, by Stanislas de Guaita, 1920. Source: Embassy of the Free Mind
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Chort is a demon from Slavic folklore, son of Chernobog, who is trickster figure in folktales. It often tries to trick people into selling their souls, but is easily outsmarted. Sometimes Chort acts as a force for good, and gives heroes magical items, or takes villains to hell. Image: Wikimedia Commons
The Monster of Krakow first appeared in Histoires Prodigieuses by Pierre Boaistuau, 1559. Four hours after its birth, the demonic beast reportedly uttered “Watch, the Lord cometh” and died. Source: Wellcome Collection
Akton is a demon that causes aches and pains in humans, afflicting the ribs and lower back. According to the Testament of Solomon, he can be rid by saying the names Marmaraoth and Sabaoth. The latter being one of the Hebrew names for God.
Depictions of demons and the devil with extra faces, often on the groin, are common in medieval manuscripts. Some theorize that it represents their spiritual corruption, by emphasizing the senses that focus on the material world, others think it’s merely to make them monstrous.
The Compendium Of Demonology and Magic is a book full of bestiary illustrations and magical diagrams, written in German and Latin. It’s title page has the warning “Don’t Touch Me” and the year 1057, but it’s been dated to 1775. Likely the book was created to sell to collectors.⠀
Ezequiel or Chazaqiel is one of the fallen Watcher Angels, class of angels meant to be sentinels or messengers of Yahweh. He taught forbidden knowledge to humans, including how to identify omens the clouds. He was also known to lust after women. ⠀
Ammit or Ammut is an Egyptian demon, who holds the titles “Devourer of the Dead” and “Eater of Hearts”. If Anubis determined a deceased’s heart was impure, Ammit would devour it, causing the soul to be restless forever. She was also known to cast hearts into a lake of fire.⠀