Greek mythological hero and leader of the Argonauts
Jason ( JAY-sən; Ancient Greek: Ἰάσων, romanized: Iásōn [i.ǎːsɔːn]) was an ancient Greek mythological hero and leader of the Argonauts, whose quest for the Golden Fleece is featured in Greek literature. He was the son of Aeson, the rightful king of Iolcos. He was married to the sorceress Medea, the granddaughter of the sungod Helios. . Jason appeared in various literary works in the classical world of Greece and Rome, including the epic poem Argonautica and the tragedy Medea.
https://en.wikipedia.org/wiki/Jason