ALCMENE, in ancient Greek mythology, the daughter of
Electryon, king of Mycenae, and wife of Amphitryon. She
was the mother of Heracles by Zeus, who assumed the likeness
of her husband during his absence, and of Iphicles by
Amphitryon. She was regarded as the ancestress of the
Heracleidae, and worshipped at Thebes and Athens.
See Winter, Alkmene und Amphitryon (1876).
Initial text from 1911 encyclopedia -- Please update as needed