1. Poseidon= The major god of sea, the strongest, and one of the Olympians. He is also the god of Earthquakes and Horses.
2.Delphin= Minor god of dolphins and underwater life.
3. Triton= Son of Poseidon, minor god of the sea and oceans and conch shells.
Delphin is one of Poseidon's closest attendants. These three all live together on Atlantis, Poseidon's underwater palace. Poseidon is married to an oceanid turned minor sea goddess Amphitrite. Triton is their son.