Zeus had already promised to grant Semele her every wish and thus was forced to grant a wish that would kill her: the splendour of his firebolts, as god of thunder, destroyed Semele. Zeus saved their unborn child,
Dionysus is called twice-born because he was born from Semele and then, while she was dying, Zeus saved him by sewing him up in his thigh and keeping him there until he reached maturity. He then "gave birth" to Dionysus, thus making him twice-born.
Zeus rescued the fetal Dionysus, however, by sewing him into his thigh (whence the epithet Eiraphiotes, 'insewn', of the Homeric Hymn).
This was Dionysus, the vine god of ecstasy, who was never granted Olympian status. His mother was the Theban princess, Semele. Zeus visited her one night in the darkness, and she knew a divine being was present and she slept with him. When it turned out that Semele was pregnant she boasted that Zeus was the father.
In some versions of Greek mythology, Zeus ate his wife Metis because it was known that their second child would be more powerful than him. After Metis's demise, their first child Athena was born when Hephaestus cleaved Zeus's head open and the goddess of war emerged, fully grown and armed.
Perhaps partly because of the strange circumstances of her birth, Athena is often cited as Zeus's favourite child. He also greatly admired her strength of character and fighting spirit. Some believe Athena was Zeus's first born child, which might, somewhat unfairly, suggest why he chose her as his favourite.
According to many versions of the story, Zeus took the form of a swan and had sexual intercourse with Leda on the same night she slept with her husband King Tyndareus. In some versions, she laid two eggs from which the children hatched.
II.
Aphrodite later and of her own volition had an affair with Zeus, but his jealous wife Hera laid her hands upon the belly of the goddess and cursed their offspring with malformity. Their child was the ugly god Priapos.
Ganymede (or Ganymedes) was a young man from Troy. His beauty was unparalleled and for that reason, Zeus abducted and brought him to Olympus to serve as his cupbearer and lover. Ganymede's myth is an important step in the history of homosexuality.
Zeus fell in love with Io and seduced her. To try to keep Hera from noticing he covered the world with a thick blanket of clouds. This backfired, arousing Hera's suspicions. She came down from Mount Olympus and begain dispersing the clouds.
Zeus was known in his time as much more than the father of the gods. He was also a womanizer, and as such, he fathered many, many offspring!
Zeus' final wife was his sister, Hera. Knowing her sympathy for animals, he transformed himself into a distressed little cuckoo, which Hera took in her arms to warm it. At that moment, Zeus turned back into himself and slept with her. Ashamed, Hera agreed to marry him.
Before his marriage to Hera, Zeus consorted with a number of the female Titanes (and his sister Demeter). These liaisons are ordered by Hesiod as follows: (1) Metis; (2) Themis; (3) Eurynome; (4) Demeter; (5) Mnemosyne; (6) Leto.
Heracles: son of Zeus (king of the gods) and Alcmene, a mortal woman.
Aside from his seven wives, relationships with immortals included Dione and Maia. Among mortals were Semele, Io, Europa and Leda (for more details, see below) and with the young Ganymede (although he was mortal Zeus granted him eternal youth and immortality).
He was very afraid that one of his children would kill him just as he had murdered his own father. He was so worried he started to eat his own children after they were born, much to his wife Rhea's horror!
Under the name of Callithyia, Io was regarded as the first priestess of Hera, the wife of Zeus. Zeus fell in love with her and, to protect her from the wrath of Hera, changed her into a white heifer. Hera persuaded Zeus to give her the heifer and sent Argus Panoptes (“the All-Seeing”) to watch her.
Zeus didn't limit his metamorphosing-seduction techniques to the ladies. Zeus was attracted to a young man named Ganymede, so, naturally, Zeus turned himself into an eagle and abducted Ganymede to Olympus.
Why is Zeus married to his sister? To hide her shame, Hera agreed to marry him. It was a violent marriage at best. Though Zeus had pursued his sister and sought to possess her by marriage, he never gave up his lusty ways.
Hera. The most famous of Zeus' wives, Hera was also the sister of the father of the gods, and the goddess of women, marriage, family, and childbirth.
Hera. The most famous wife of Zeus is Hera. She was his principal wife and the Queen of heaven.
Hebe was the youngest daughter to Zeus and his wife Hera. Her name came from the Greek word for 'youth', and it was thought she had the power to temporarily restore youth in a chosen few.
Together, Zeus and Hera had three children: Ares, Hebe, and Hephaestus.
Hercules was the illegitimate child of Zeus and a mortal woman, as were Perseus, Helen of Troy and Minos (among other very, very famous offspring of Zeus).