Source Verification: Tethys
Every claim below is either what a named ancient source attests, in its own line or section, or a point where the sources themselves disagree.
What the Sources Attest
Who are Tethys's parents and siblings?
Hesiod names her as one of the twelve Titans born to Ouranos and Gaia, making her a sibling of Kronos, Rhea, Oceanus, and the rest of that first generation, all born before the Olympians existed.
Source: Hesiod, Theogony 132-138
How many children did Tethys have, and who are the most important?
Hesiod counts three thousand daughters, the Oceanids, and just as many river-god sons, though he names only a portion of them directly. The most consequential by later myth are Metis, who becomes Zeus's first wife and the mother of Athena; Styx, whose waters the gods swear their most binding oaths on; and Calypso, the nymph who later keeps Odysseus on her island for seven years.
Source: Hesiod, Theogony 346-370
Are the rivers of the real world considered Tethys's children too?
Yes. Hesiod names the Nile, the Alpheus, the Maeander, and the Danube (called Ister) among the specific rivers born to Tethys and Oceanus, treating the geography of the known world's waterways as literally descended from the Titan couple.
Source: Hesiod, Theogony 337-345
Do other ancient sources besides Hesiod confirm Tethys's place among the Titans?
Yes. Apollodorus's Library opens with its own summary of Ouranos and Gaia's children and names Tethys directly among the Titan daughters, alongside Rhea, Themis, Mnemosyne, Phoebe, and Theia, matching Hesiod's earlier list.
Source: Apollodorus, Library 1.1.3-1.1.4
Sources
- Hesiod, Theogony 132-138
- Hesiod, Theogony 337-345
- Hesiod, Theogony 346-370
- Apollodorus, Library 1.1.3-1.1.4
- Timothy Gantz, Early Greek Myth (1993)