the relatives of poseidon is zeus,hades,hestia,hera,demeter,Amphitrite,Homer and Hesiod.
poseidon spends most of his life in the waters
poseidonis the god of waters,earthquakes and horses
Poseidon was a brother of Zeus, the sky god and chief deity of ancient Greece, and of Hades, god of the underworld. When the three brothers deposed their father, the kingdom of the sea fell by lot to Poseidon. His weapon and main symbol was the trident, perhaps once a fish spear.
poseidon was god of the sea, earthquakes, storms, and horses and is considered one of the most bad-tempered, moody and greedy Olympian gods. He was known to be vengeful when insulted. He is the son of Cronus and Rhea and was swallowed by his father along with Hades, Demeter, Hestia and Hera.