Pelias

Pelias is presented in the source tradition as a scion of the heroic genealogies: he is the son of Tyro and the god Poseidon (often via the river-god guise Enipeus) and was exposed as an infant but saved, subsequently rising to become king of Iolcus. Within the mythic-historical narrative of the Argonautic cycle he seizes power in Thessaly, banishes rivals, imprisons his half-brother Aeson, and rules as a usurping monarch whose actions set Jason on the quest for the Golden Fleece.

Extant sources concentrate on Pelias's political acts and genealogy rather than on sustained physical description; no authoritative portrait-type details (height, facial features, distinctive dress) are recorded in the provided materials. Narrative motifs associated with him are situational (for example, an oracle about a one-sandalled man that he fears) rather than descriptive of bodily appearance. Thus, classical retellings characterize Pelias by his role and deeds—kingly actions in court, ritual offerings, and involvement in the staged rejuvenation scene—rather than by a fixed physical depiction.

Pelias possesses no supernatural powers in the cited tradition; his capacities are political and strategic. He is described as ambitious and ruthless—seeking dominion over Thessaly, banishing rivals (Neleus and Pherês), and imprisoning Aeson—and capable of violent vengeance (killing Sidero, which incurs Hera's hatred). He also reacts to prophecy: after an oracle warns that a one-sandalled man will threaten him, he attempts to neutralize that threat by sending Jason on the Golden Fleece quest. His downfall comes through human cunning and deception—Medea's staged 'rejuvenation' demonstration and his daughters' actions—rather than by magical overpowering by Pelias himself.