During the adventure of the Argonauts, Jason put ashore at Colchis where he met Medea, the daughter of Aeetes, and was bewitched by her beauty, read more about Argonauts at https://www.britannica.com/topic/Argonaut-Greek-mythology. Aeetes, the King of Colchis, obstructed Jason’s quest for the golden fleece by setting him an impossible task, but Medea, being in love with him, helped him perform it by magic and escaped with him to Greece.
Overcome by wrath, Aeetes pursued her and, in an effort to delay his advances, Medea murdered her brother, strewing his mutilated limbs in her father’s path. On their arrival at Iolcos, Medea rejuvenated Jason’s father Aeson by boiling him with magic herbs but her evil trickery forced them to flee to Corinth, where Jason deserted her for Glauce. Medea took revenge by slaughtering their children and poisoning her rival.