The daughter of War God ARES and Love Goddess APHRODITE, she may have started life in some confusion. Was she a Goddess of Love or War? Finally she put the two together and became the harmonious deity of pouring oil on troubled waters.
HARMONIA was given unto CADMUS, founder of Thebes, to be his wife. Her wedding present was a dodgy necklace made by HEPHAESTUS which brought bad luck to all in its vicinity. HARMONIA didn’t suffer a jot, but her daughters AGAVE, INO and SEMELE certainly did.
Poor mom cannot be too distressed though — as the goddess of harmony she is never more than a barbershop choir away from happiness.
CADMUS and HARMONIA lived happily as king and queen until they died and were turned into serpents. Happy, harmonious ones.