Neptune was the Roman god of the Oceans, and counterpart to Poseidon.
Neptune was one of the six children of Saturn and Ops, alongside Jupiter, Pluto, Juno, Ceres and Vesta. All save for Jupiter were swallowed by their father, he forced Saturn to vomid the five other gods out and united they overthrew him.
Neptune, Jupiter and Pluto then drew straws on which aspect of the universe they would rule: Jupiter became the lord of the skies, Neptune lord of the seas and Pluto became lord of the Underworld.
He later married the goddess Salacia, and had a son named Triton, but would also developed a bitter rivalry with the goddess Minerva.