Gigas

Gigante History
Angry with Zeus for imprisoning her Titan sons in the Underworld, the earth goddess Gaia gave birth to the Gigantes, instructing them to rise up against the Olympian Gods. The gods were worried, not least because the Gigantes could only die by mortal hands.

Zeus fathered a son, Hercules, who he hoped would be able to defeat the Gigantes. After his death, Hercules was brought to Olympus, where the Gigantes had begun their invasion. The gods fought a bloody war, the Gigantomachy, to stave off the Gigantes, subduing them while Hercules finished them off with his poisoned arrows. Finally, the Gigantes were defeated, and the survivors were buried beneath the earth, where they were said to be the cause of earthquakes.