The son of Polynices and one of the Epigoni. When the Argives captured Thebes they handed it over to Thersander. Later he joined the Greeks against Troy but was killed in Mysia by Telephus and since then venerated there as a hero. His tomb was in the town of Elaea on the way to the plain of the Caicus.
- Hyginus. Fabulae, 71.
- Pausanias. Description of Greece ix, 5.14.