Eligor

Eligos, also known as Eligor or Abigor, is the 15th demonic spirit of the Ars Goetia and a fallen angel. He governs over 60 legions of spirits. He is a great duke and appears in the form of a goodly knight carrying a lance, pennon (flag) and a scepter (a serpent to Aleister Crowley). Alternatively, he is depicted as a ghostly specter, sometimes riding a semi-skeletal (sometimes winged) horse, or the Steed of Abigor. This is a minion of Hell itself, and was a gift from Beelzebub. It was created from the remains of one of the horses of the Garden of Eden.