Side by sideSiblings
Hades and Poseidon are recorded as siblings in the Greek Pantheon.
| Hades | Poseidon | |
|---|---|---|
| Tradition | Greek Pantheon | Greek Pantheon |
| Domains | underworld, death, wealth | sea, earthquakes, horses, storms |
| Symbols | helm of darkness, bident, Cerberus, cornucopia | trident, horse, dolphin, bull |
| Also called | Pluto, Plouton | Neptune |
The atlas records no domain or symbol that Hades and Poseidon share.
They are compared because of how the myths connect them, not because of what they rule.
Associated with underworld, death, and wealth.
Associated with sea, earthquakes, horses, and storms.
Greeks preferred not to build him a house in town. They poured to the ground, used black victims, and often would not say his name. Eleusis is the public exception: the husband of the grain's daughter, not a devil.
Horses, earthquakes, and the drowned coast are his working signs. Isthmia held games under his name. A bull often went to the sea. Inland Boeotia kept him as a horse god, not only a sailor's patron.
Greek Pantheon
God of the underworld and the dead. Ruler of the realm of Hades, rarely leaving his kingdom.
Hades rules the underworld not as a devil figure but as a stern, lawful monarch of the dead. Greek religion treats him as unavoidable, distant, and powerful rather than chaotic. He governs the wealth hidden in the earth as well as the souls that descend beneath it, which is why later traditions also call him Plouton, "the wealthy one."
Greek Pantheon
God of the sea, earthquakes, and horses. Brother of Zeus and Hades, ruler of the oceans and all waters.
Poseidon rules the vast oceans, earthquakes ("Earth-Shaker"), and horses. He is a moody and tempestuous god, much like the sea itself. Sailors prayed to him for safe passage, often sacrificing horses or bulls to appease his wrath.
Comparisons pair figures that play a similar role across traditions, or that the myths connect within one. A shared role does not, by itself, establish a shared origin.