Alcmene

[3] According to the Bibliotheca, Alcmene was born to Electryon, the son of Perseus and Andromeda, and king of Tiryns and Mycenae or Medea in Argolis.

[8] Hesiod describes Alcmene as the tallest, most beautiful woman with wisdom surpassed by no person born of mortal parents.

[10] During Amphitryon's expedition against the Taphians and Teleboans,[11] when Zeus desired to sleep with Alcmene, he made one night last longer extending it to three, by ordering Helios, the sun god, not to rise for three whole days.

When Amphitryon finally returned to Thebes, Alcmene told him that he had come the night before and slept with her; he learned from Tiresias what Zeus had done.

Hera, after requesting Zeus to swear an oath to that effect, descended from Olympus to Argos and made the wife of Sthenelus (son of Perseus) give birth to Eurystheus after only seven months, while at the same time preventing Alcmene from delivering Heracles.

After seven days and nights of agony, Alcmene stretched out her arms and called upon Lucina, the goddess of childbirth (the Roman equivalent of Eileithyia).

To put an end to her mistress's suffering, she announced that Alcmene had safely delivered her child, which surprised Lucina so much that she immediately jumped up and unclenched her hands.

[17] In contrast to the depictions of a difficult labor above, an alternative version is presented in Amphitryon, a comedic play by Plautus.

[18] After the death of Amphitryon, Alcmene married Rhadamanthys, son of Zeus, and lived with him in exile at Ocaleae in Boeotia.