Porphyrion was one of the Gigantes in Greek mythology, the sons of the Titans Uranus and Gaea that sprang out when Uranus was castrated by his son Cronus and the blood fell on the earth. He was considered the mightiest of all the Gigantes. During the Gigantomachy, the battle that took place between the Gigantes and the Olympian Gods, Porphyrion stood against Heracles and Hera. During their fight, Zeus put a spell on Porphyrion, making him fall in love with Hera, whom he tried to rape. At that point, Zeus threw a thunderbolt against him, while Heracles provided the finishing blow with an arrow.
See Also: Gigantes, Titans, Uranus, Gaea, Cronus, Heracles, Hera, Zeus