The Giants (, "Gigantes") were the children of Gaia. She was fertilised by the blood of Uranus, after Uranus was castrated by his son Cronus. After the Titans' lost their war against the Olympians, Gaia made the Giants rise up against the Olympians to restore the Titans' rule. The Olympians got help from the hero Heracles to stop the Giants. This war was the Gigantomachy.