Zeus is the Greek God of Lightning, Sky and Justice. The King of Mount Olympus, he has authority over all the Gods and Mortals under his domain. Even his brothers, Poseidon and Hades must respect his power lest he strip them of theirs. Jupiter is Zeus's Roman counterpart, being more disciplined and militaristic than his Greek form. Infamous for his philandering nature, Zeus has fathered many great heroes, the most notable being Hercules, and is also the father of Jason and Thalia Grace.