Cymopoleia
In Greek mythology, Cymopolea or Kymopoleia (Κυμοπόλεια) was a daughter of Poseidon. Her father married her to the giant Briareus, who expressed loyalty to the Olympian gods during the Titanomachy.[1]
She was presumably the mother of Oiolyke, who was given as the daughter of Briareus and a possible possessor of the girdle that Heracles was sent to fetch. The girdle was also said to have belonged to Deilyke (otherwise unknown) or, most commonly, to Hippolyta, queen of the Amazons.[2]