The Archdevils are 8 of the most powerful of Devils, each leading one of the Nine Circles of Hell, and bearing the title of Praetor.
Seven of the eight Archdevils represent one of the seven infernal sins: Lust, Gluttony, Greed, Envy, Wrath, Sloth and Pride. A direct reflection of the seven Archangels of the Heavens. The eight Praetor was added later, and is known as the Archdevil of War.