Hades

After his birth, Kronos devoured him, as well as his siblings, so that Hades could not overpower him in the future and usurp his rule. His youngest brother, Zeus, escaped the devouring and eventually defeated Kronos. In the division of the empire, the realm of the dead fell to Hades.

His wife was Persephone (originally named Cora and daughter of the goddess Demeter). Persephone was obtained by Hades by deception. By kidnapping her while she was out with her mother, giving life to plants. She took a liking to a daffodil, but it was bewitched by Hades. In the underworld, he gave her the forbidden pomegranate fruit. He then forced her to stay in the underworld for a third of each year (other sources say that as many seeds from the apple as she ate, that's how many months she had to stay in the underworld). At the behest of her brother Zeus, she was released from the realm of the dead once a year to visit her mother Demeter.

Hades stayed in his realm because he knew that "everyone once born must sooner or later enter the house of Hades."