In ancient Greek mythology, Amphitrite was a sea goddess and wife of Poseidon and the queen of the sea.  Under the influence of the Olympian pantheon, she became the consort of Poseidon and was later used as a symbolic representation of the sea.

Amphitrite was a daughter of Nereus and Doris; they called her the personification of the sea itself (saltwater). Amphitrite’s offspring included seals and dolphins. She also bred sea monsters, and her great waves crashed against the rocks, putting sailors at risk. Poseidon and Amphitrite had a son, Triton, who was a merman, and a daughter, Rhodos.

From Wikipedia