Medea is an ancient Greek tragedy written by Euripides. It is based upon the myth of Jason and Medea and was first produced in 431 BC as part of a trilogy; the two other plays have not survived. The plot centers on the actions of Medea, a former princess of the kingdom of Colchis, and the wife of Jason; she finds her position in the Greek world threatened as Jason leaves her for a Greek princess of Corinth. Medea takes vengeance on Jason by murdering his new wife and her own two sons, after which she escapes to Athens to start a new life.