hades

Hades, also known as Aides or Aidoneus, is the ruler of the Underworld, the God of the dead and of death. He also was the god of the hidden wealth of the Earth. Hades and his two brothers Zeus and Poseidon were eaten by their father Kronos, Zeus made Kronos puke them up, and then the three of them kicked their butts out of heaven. Then Zeus and Poseidon tricked Hades into taking the Underworld. Hades wanted a wife so he made Zeus give him one of his daughters, and he chose Persephone the daughter Demeter, who is the goddess of agriculture, but Persephone refused to marry him so Zeus aided Hades in the forceful abduction of Persephone, but when Demeter heard of the news she made an endless winter where the crops would not grow and humans would starve to death so Zeus made Hades give her back, but Hades gave Persephone a grapefruit from the underworld and the rule is if you eat something you must stay in the underworld forever. So Persephone must go to the Underworld once a year for a couple months and Demeter is quite sad during this time so crops do not grow we know this couple month span known as winter.

http://www.theoi.com/Khthonios/Haides.html