Rhea was an Earth Goddess and the mother of the major Greek gods. As the daughter of Gaia and Uranus and wife of Cronus, she ruled the Titans on Mount Olympus and bore six children - Demeter, Hera, Hestia, Poseidon, Hades and Zeus. She helped Zeus dethrone Cronus and overthrow his rule, after which her importance declined but she remained a matronly figure often depicted between two lions.