Where Heracles branches off Zeus's tree
On most charts Zeus and the Titaness Rhea produce the six Olympian siblings; Zeus's other unions produce a cloud of heroes and gods. Heracles belongs to the hero cloud: son of Zeus and Alcmene, three generations below Perseus on his mother's side according to Apollodorus.
That placement matters for search intent. Readers looking for "Hercules family tree" usually want Zeus → Alcmene → Heracles, not a list of every child Zeus ever sired.
Twins, two fathers, one night stretched
Apollodorus describes Zeus disguised as Amphitryon on a tripled night, then the real husband arriving the next evening. The result is heteropaternal superfecundation in mythic dress: Heracles from Zeus, Iphicles from Amphitryon. The full story of the mother is on Alcmene, Hercules' mother.
Hera's birth tricks, told in competing versions, swap which newborn inherits Zeus's oath about rulership, setting up Eurystheus and the Labors.
After death: Olympus and Hebe
Greek tradition widely holds that Heracles was granted immortality after his death, ascended to Olympus, and married Hebe, goddess of youth and daughter of Zeus and Hera. That marriage reconnects him to the divine household the Labors kept trying to kill him for offending.
For the chart's contradictions about who counts among the twelve thrones, compare the twelve Olympians dispute and the main family tree article.
