HADES God ring King of Underworld

Hades God of the Dead, of the Underworld, the Subterranean Regions, Death, Darkness, The Earth, Fertility, Riches, Mortality, Afterlife and Metals.
 
Inspiration from Legend of Ancient Greek
The third brother, Hades, drew the Underworld, land of the dead. In Greek mythology, Hades appears as a loner uninterested in the world of the living. He is often depicted holding a key, signifying his status as the god who keeps the dead locked away from the world of the living. Like Poseidon, Hades was associated with horses; some myths say that Hades, not Poseidon, created the horse.