Poseidon's Realm is the sea.
The three brothers (Zeus, Poseidon, and Hades) drew lots for their realm. Zeus got the skies, Hades got the underworld, Poseidon got the sea.
The Sea.
no
Hera is the goddess of the sky and Queen of the Gods.
the function of Poseidons temple was for Poseidons honor.
Rhea.
cronus
Cronus and Rhea
Triton
Neptune
Rhea.
a trident
He doesn't had friends
In myths, he does not have one.