Demonology: List of Demons, Devils, Monsters & Evil Spirits

Picollus

Picollus was revered by the ancient inhabitants of Prussia and would appear to important people during their last days.

Phenex, the 37th spirit, is a great Marquis who appears like the bird Phoenix.

Paimon is a king of hell who governs 200 legions, half of them from the Angelic Order, and half from the Order of Powers.

Ose, the 57th spirit, is a great Marquis who appears like a leopard.

High prince of hell, Orobos appears in the form of a beautiful horse or as a man, who speaks of the divine essence.

Ornias (trans. "pesky") is the first demon mentioned in the Testament of Solomon.

Oriax, the 59th spirit, is a great Marquis who appears in the form of a lion.

Onoskelis was a female demon with a beautiful form mentioned in the Testament of Solomon.