Mephistopheles

Mephistopheles, sometimes shortened to Mephisto and once under the name of Molikroth, is the lord of Cania and most powerful archdevil next to Asmodeus himself. Hell's greatest wizard was a walking contradiction, on the surface the cool and calculating Cold Lord and beneath that the grandiose and hot-headed Lord of Hellfire.
Mephistopheles played up his infernal image as much as possible, intentionally appearing as the classic archetype of a diabolical devil. He was 9 ft (2.7 m) tall and striking, his handsome visage and charming yet unnerving smile of self-superiority contrasted by his more monstrous features. His fiendish claws,bright, crimson red skin, large, bat-like wings and impressive, curling ram horns all left his hellish heritage on proud display. Another source of contrast was his dead-white eyes against his long, straight, black hair, as well as his dramatic, flowing cape as dark as the deepest void.

Lord of Cania.