In Greek mythology, the Titans are a race of godlike giants who were considered to be the personifications of the forces of nature. They are the twelve children (six sons and six daughters) of Gaia and Uranus. Each son married, or had children of, one of his sisters. They are: Cronus and Rhea, Iapetus and Themis, Oceanus and Tethys, Hyperion and Theia, Crius and Mnemosyne, and Coeus and Phoebe.