In Greek mythology , the daughter of King Aeetes of Colchis.
After helping Jason , leader of the Argonauts , to obtain the Golden Fleece from her father, the two were married and she returned with him to Iolcos, where she killed the king who had deprived Jason of his inheritance. Forced into exile, the couple settled in Corinth. In Euripides' tragedy Medea , Jason later deserts her for the daughter of King Creon, and Medea takes revenge by killing Creon, his daughter, and her own two children by Jason before fleeing to Athens.