Pelias (PEL-ee-us). King of Iolcus who deprived Jason's father Aeson of his rightful throne and sent Jason after the Golden Fleece. When the hero returned to Iolcus from the successful completion of this quest, he brought along the sorceress Medea. It was she who achieved his family's revenge on Pelias. Restoring Aeson to youth by boiling him in a cauldron with magical herbs, she then offered the same service to Pelias. He did not survive the process.