Hellen, according to tradition, was king of Phthia in Thessaly, i. e. the country between the rivers Peneius and Asopus, and this kingdom he left to Aeolus.
Hellen is the mythical ancestor of all the Hellenes or Greeks, in contradistinction from the more ancient Pelasgians. The name of Hellenes was at first confined to a tribe inhabiting a part of Thessaly, but subsequently it was extended to the whole Greek nation. (The History of Herodotus I )
2. A son of Phthios and Chrysippe, and the mythical founder of the Thessalian town of Hellas.