Jason was the son of Aeson, the rightful king of Iolcus, but was sent away as a child when his uncle Pelias seized the throne. When Jason grew up, he wished to reclaim his throne, but Pelias sent him on a quest to retrieve the golden fleece instead. Jason gathered a crew and sailed to Colchis, where with their help he overcame challenges and secured the fleece. Upon his return, Pelias' death allowed Jason to finally regain his throne as the oracle had predicted.