Zeus was the King of all gods. He ruled the Olympians of Mount Olympus, he representative as both a father as head of the family and king.
He was the God of sky and thunder in greek mythology. His symbol are the thunderbolt, eagle, bull, and oak. Zeus was the child of Cronus and Rhea, and the youngest of his siblings. In most traditions he was married to Hera, although, at the oracle of Dodona, his consort was according to the Dione: Illiad, he is the father of Aphrodite by Dione. He is known for his erotic escapades. These resulted in many godly and heroic offspring, including Athena, Apollo and Artemis, Hermes, Persephone (by Demeter), Dionysus, Perseus, Heracles, Helen, Minos, and the Muses (by Mnemosyne); by Hera, he is usually said to have fathered Ares, Hebe and Hephaestus.
To the Greeks and Romans, the god of the sky was also the supreme god. Zeus is the only Deity in the Olympic pantheon whose name has such a transparent Indo- European etymology.
Zeus in myth/Birth
Cronus sired several children by Rhea: Hestia, Hemeter, Hera, Hades, and Posiedon, but swallowed them all as soon as they were born, since he had learned from Gaia and Uranus that he was destined to be overcome by his own son as he had overthrown his own father- an oracle that Zeus was to hear and avert. But when Zeus was about to be born, Rhea sought Gaia to devise a plan to save him, so that Cronus would get his retribution for his act against Uranus and his own childern. Rhea gave birth to Zeus in Crete, handing Cronus a rock wrapped in swaddling cloths, which he promptly swallowed.