
Below we've gathered some frequently asked questions about Poseidon along with detailed information on how they are related to all the people on the Greekmythology family tree.
Domain
Sea and earthquakes
Generation
Olympian
Symbol
Trident and horse
Roman Equivalent
Neptune
Poseidon siblings include Zeus, Hera, Hades, Demeter, Hestia
Poseidon aunts / uncles include Rhea, Oceanus, Tethys, Hyperion, Theia, Coeus, Phoebe, Iapetus, Cronus
Poseidon cousins include Clymene, Metis, Helios, Selene, Eos, Leto, Asteria, Atlas, Prometheus, Cronus, Rhea, Oceanus, Tethys, Hyperion, Theia, Coeus, Phoebe, Iapetus, Aphrodite
Poseidon first cousin once removed include Atlas, Prometheus, Athena, Apollo, Artemis, Maia, Zeus, Hera, Poseidon, Hades, Demeter, Hestia, Clymene, Metis, Helios, Selene, Eos, Leto, Asteria
Poseidon second cousins include Athena, Ares, Hephaestus, Apollo, Artemis, Persephone, Hermes, Dionysus, Perseus, Maia
Poseidon nephews / nieces include Athena, Ares, Hephaestus, Apollo, Artemis, Persephone, Hermes, Dionysus, Perseus
Poseidon first cousins twice removed include Maia, Hermes, Athena, Ares, Hephaestus, Apollo, Artemis, Persephone, Dionysus, Perseus, Atlas, Prometheus
Poseidon ancestors include Cronus, Uranus, Gaia, Rhea
Poseidon all blood relatives include Cronus, Uranus, Gaia, Rhea, Zeus, Athena, Ares, Hephaestus, Apollo, Artemis, Persephone, Hermes, Dionysus, Perseus, Hera, Hades, Demeter, Hestia, Oceanus, Clymene, Atlas, Maia, Prometheus, Metis, Tethys, Hyperion, Helios, Selene, Eos, Theia, Coeus, Leto, Asteria, Phoebe, Iapetus, Aphrodite, Pontus
Updated: Thu Jun 25 2026
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