Poseidon was one of the Twelve Olympians in ancient Greek religion and myth, god of the sea, storms, earthquakes and horses. He also had the cult title “earth shaker”.
In the myths of isolated Arcadia he is related with Demeter and Persephone and he was venerated as a horse, however it seems that he was originally a god of the waters. He is often regarded as the tamer or father of horses, and with a strike of his trident, he created springs which are related with the word horse. Poseidon was protector of seafarers, and of many Hellenic cities and colonies. Homer and Hesiod suggest that Poseidon became lord of the sea following the defeat of his father Cronus, when the world was divided by lot among his three sons; Zeus was given the sky, Hades the underworld, and Poseidon the sea, with the Earth and Mount Olympus belonging to all three.
In Homer’s Iliad, Poseidon supports the Greeks against the Trojans during the Trojan War and in the Odyssey, during the sea-voyage from Troy back home to Ithaca, the Greek hero Odysseus provokes Poseidon’s fury by blinding his son, the Cyclops Polyphemus, resulting in Poseidon punishing him with storms, the complete loss of his ship and companions, and a ten-year delay. Poseidon is also the subject of a Homeric hymn. In Plato’s Timaeus and Critias, the legendary island of Atlantis was Poseidon’s domain.
Trident, fish, dolphin, horse, bull
Cronus and Rhea
Hades, Demeter, Hestia, Hera, Zeus, Chiron
Amphitrite, Aphrodite, Demeter, various others
Theseus, Triton, Polyphemus, Orion, Belus, Agenor, Neleus, Atlas (the first king of Atlantis), Pegasus, Chrysaor, Cymopolea