Zeus or Jupiter: King of the Gods
Some semblance of order was imposed on the Greek gods of Mount Olympus by Zeus (pronounced: zoose), the King of the Gods. He was the youngest brother of three sons that sprang from the union of Cronus and Rhea. The older brothers, Hades and Poseidon were swallowed by their father because there had been a prediction that Cronus would be overthrown by one of his sons. (Some myths report that Cronus also ate the sisters of Zeus.)
Rhea, getting tired of seeing her sons eaten by her husband, gave Cronus a bunch of rocks wrapped in a blanket, which he cheerlessly consumed thinking it was Zeus. Meanwhile, Rhea hid Zeus away on the island of Crete where he was raised by a goat. When he came of age, Zeus confronted his father and caused him vomit up his brothers who, being immortal, were not dead. Cronus was then banished to Tartarus, a cold, dark, place. Then the gods including the sisters of Zeus, Demeter, Hestia, and Hera fought a war with the titans, overthrowing the existing order. The titans were the sons and daughters of Uranus and Gaia. The titans were allied with the giants and cyclopses and some hundred-handed creatures. All were defeated by the gods and many also banished to Tartarus.
Zeus split the world with his brothers. He made Hades king of the underworld. Poseidon became the God of the sea. Zeus reserved for himself the sky and dominion over all the other gods. Zeus married Hera and settled in as King. He was involved directly or indirectly in much of the happenings on Mount Olympus. He was not a faithful husband and was father to many mortals and immortals, including Athena - goddess of wisdom - and Apollo - the sun god.
The biggest planet in the solar system was named for Zeus, in his Roman persona, Jupiter or Jove (from whence we get the oath, "by Jove").