In Greek mythology and, later, Roman mythology, the Oceanids were the three thousand daughters of the Titans Oceanus and Tethys. Each was the patroness of a particular spring, river, sea, lake, pond, pasture, flower or cloud. Some of them were closely associated with the Titan gods (such as Calypso, Clymene, Asia, Electra) or personified abstract concepts (Tyche, Peitho).