Neptune was the god of freshwater and the sea in Roman religion.
Symbols: Trident, horse, dolphin, bull
Parents: Saturn and Ops
Siblings: Ceres, Juno, Jupiter, Pluto, Vesta
Greek equivalent: Poseidon
Other Names: Neptune Equestris
From early on Neptune had been equated with Poseidon, but was primarily a god of springs, lakes and rivers before becoming also a god of the sea.