Demigod Herakles becomes a god

“And besides these there are other gods, they say, who were terrestrial, having once been mortals, but who, by reason of their sagacity and the good services which they rendered to all men, attained immortality, some of them having even been kings in Egypt. Their names, when translated, are in some cases the same as those of the celestial gods, while others have a distinct appellation, such as Helius, Cronus, and Rhea, and also the Zeus who is called Ammon by some, and besides these Hera and Hephaestus, also Hestia, and, finally, Hermes.” – Diodorus Siculus 1.13