Posidon's brothers are Zeus(God of the Sky) and Hades(God of the Underworld)
Hades and Zeus are his brothers, his sisters including Hera, Demeter, and Hestia.
the function of Poseidons temple was for Poseidons honor.
Rhea.
cronus
I think that Poseidon's siblings are Zeus and Hades.
Cronus and Rhea
Triton
Neptune
Rhea.
a trident
Parents: Cronus (kronos) and Rhea Brothers: Zeus and Hades sisters: Hera, Demeter and Hestia Wife: amphitrite children: A whole list of them but most famous is Triton
He doesn't had friends