Gaea (Earth) the first to be born and mother of the Titans and other gods.
In Hesiod’s Theogony, Gaea gave birth to Uranus (Heaven), Ourea (Mountains) and Pontus (Sea). She mated with Uranus and thus the Titans, the Cyclopes, and the Hecantoncheires were born.
- Titans: Cronus, Oceanus, Hyperion, Iapetus, Crius, Coeus
- Titaness: Rhea, Tethys, Theia, Themis, Phoebe, Mnemosyne
- The Cyclopes (giant one-eyed creatures): Brontes, Steropes, Arges
- The Hecantoncheires (giants with 50 heads/100 arms): Cottus, Briareos, Gyes