Mythological narratives surrounding Harmonia are deeply intertwined with those of her husband,
Cadmus. Harmonia is commonly acquired by Cadmus as his bride in two different ways. In the version of the myth where Harmonia was born to
Zeus and
Electra on
Samothrace, she was either given to Cadmus or carried off by him after he was initiated into the island's
mysteries. In the version of the myth where she is the daughter of
Aphrodite and
Ares, Zeus gifted her to Cadmus upon his founding of
Thebes and the completion of his eight-year servitude to Ares after he slew a
dragon sacred to the god. The wedding of Harmonia and Cadmus was attended by all the gods. Many gifts were lavished upon the couple, most notably a
peplos and a necklace (ὅρμος) wrought by
Hephaestus. or Cadmus's sister
Europa, who had received them as a gift from Zeus.
Hyginus gives another version of the story. According to him, the thing which brought ill fate to the descendants of Harmonia was not a necklace, but the
peplos "dipped in crime", given to Harmonia by Hephaestus and
Hera. When Cadmus was expelled from
Thebes, Harmonia accompanied him. The pair went to
Illyria to fight on the side of the
Enchelii, and conquered the enemy. Cadmus then became king of the Illyrians. However, he was turned into a
serpent soon afterwards. His transformation may have been related to the ill fortune which clung to him as a result of his having killed the sacred dragon; one day he remarked that if the gods were so enamored of the life of a serpent, he might as well wish that life for himself. Immediately he began to grow scales and change in form. Harmonia, seeing the transformation, stripped herself and begged the gods to share her husband's fate. As she was embraced by the serpent Cadmus in a pool of wine, the gods took pity, granted her request, and transformed her. The couple was sent to
Elysium. Harmonia was closely associated with
Aphrodite Pandemos, an aspect of Aphrodite that personified order and civic unity. She was also associated with the
Roman goddess Concordia. Their son
Polynices then inherited the necklace and
peplos. He used both items to bribe
Eriphyle so that she would persuade her husband,
Amphiaraus, and her sons,
Alcmaeon and
Amphilochus, to participate in the
Seven against Thebes expedition. The expedition was a failure and Amphiaraus died during the battle. To avenge his father, Alcmaeon killed Eriphyle and the necklace and
peplos came into his possession. He gifted it to his first wife,
Alphesiboea, a daughter of
Phegus, king of
Psophis. When Alcmaeon attempted to take the items back from his wife, he was killed by Phegus's sons,
Pronous and
Agenor, and they took the necklace. Alcmeon's sons
Amphoterus and
Acarnan then avenged their father by killing Phegus's sons, and dedicated the necklace to the temple of Athena in
Delphi. == See also ==