<P> In ancient Greek religion and mythology, the Twelve Olympians are the major deities of the Greek pantheon, commonly considered to be Zeus, Hera, Poseidon, Demeter, Athena, Apollo, Artemis, Ares, Aphrodite, Hephaestus, Hermes, and either Hestia or Dionysus . Hades and Persephone were sometimes included as part of the twelve Olympians (primarily due to the influence of the Eleusinian Mysteries), although in general Hades was excluded because he resided permanently in the underworld and never visited Olympus . </P> <P> The Twelve Olympians, also known as the Dodekatheon (Greek: Δωδεκάθεον from δώδεκα, dōdeka, "twelve" and θεοί, theoi, "gods"), were the principal deities of the Greek pantheon, said to reside atop Mount Olympus . The Olympians gained their supremacy in a ten - year - long war of gods in which Zeus led his siblings to victory over their predecessor gods, the Titans . </P>

Who are the 12 gods and goddesses of olympus
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