Sisyphus had other sons besides Glaucus, the father of Bellerophontes a second was Ornytion, and besides him there were Thersander and Almus
. Ornytion had a son Phocus, reputed to have been begotten by Poseidon. He migrated to Tithorea
in what is now called Phocis, but Thoas, the younger son of Ornytion, remained behind at Corinth
. Thoas begat Damophon, Damophon begat Propodas, and Propodas begat Doridas and Hyanthidas. While these were kings the Dorians took the field against Corinth
, their leader being Aletes, the son of Hippotas, the son of Phylas, the son of Antiochus, the son of Heracles. So Doridas and Hyanthidas gave up the kingship to Aletes and remained at Corinth
, but the Corinthian people were conquered in battle and expelled by the Dorians.