The king of the Thessalian city of Iolca, the devout Ezon, had the treacherous brother Peleus, all the while plotting against him. The weak king always forgave him until Peleus, collecting a squad of villains, seized the palace and threw Ezon from the throne. It was then that Ezon was born a son - Jason. The usurper, in order to maintain royal power for his descendants, decided to kill the baby. The old servant of Ezon found out about this and warned his parents. Those spread a rumor that he was ill, and a few days later - that he died. Slaves ran out of the house and wept bitterly. Meanwhile, under cover of night, the only witness to these tricks, the mother swaddled Jason in purple swaddling clothes and carried her into the cave to the center of Chiron. Under the supervision of a wise demigod, the boy was brought up by Jason up to twenty-one years, while maintaining the purity of his language, thoughts, and customs. He did not know anything about his origin. As an adult boy