Goddess of harmony and concord.
In some versions of the myth, this was where things got really tricky and confusing. She was supposedly the sister of Eris who would have been born of Nyx. But, somehow, Harmonia was often considered the daughter of Zeus regardless of this. Either way she played a decent role in myth as Cadmus’ wife in which their end was met not with harmony but with a lot of sadness and grief. He was turned into a snake and she got naked and beckoned him to her. While all of this was happening she was in a pool of wine and the Gods felt, like, way weird about how this was all going and turned her into a snake too. At least this way they were both reptiles…
She was also known for having a necklace that caused the wearer all kinds of misfortune which is pretty ironic.