Pluto

god of the nether world, son of Kronos and Rhea, brother of Zeus and Poseidon, and husband of Perse phone; on the dethronement of Kronos the universe was divided among themselves by the three brothers, Zeus a uming the dominion of the upper world and Poseidon that of the ocean, leaving the nether kingdom to him, a domain over which and forth of which he ruled with a greater and more undisputed authority than the other two over heaven, earth, and sea.