In Greek Mythology, Hades the god of the underworld, was a son of the Titans, Cronus and Rhea. He had three sisters, Demeter, Hestia, and Hera, as well as two brothers, Zeus, the youngest of the three, and Poseidon, collectively comprising the original six Olympian gods. Upon reaching adulthood, Zeus managed to force his father to disgorge his siblings. After their release the six younger gods, along with allies they managed to gather, challenged the elder gods for power in the Titanomachy, a divine war. The war lasted for ten years and ended with the victory of the younger gods. Following their victory, according to a single famous passage in the Iliad, Hades and his two brothers, Poseidon and Zeus, drew lots for realms to rule. Zeus got the sky, Poseidon got the seas, and Hades received the underworld, the unseen realm to which the souls of the dead go upon leaving the world as well as any and all things beneath the earth.