On this red figure vase, ca. 470 B.C., Medea stands to the left of a cauldron in which she is boiling a ram. According to the myth, she cut up and cooked an old ram and it emerged as a young ram. With this demonstration of her powers, she convinced the daughters of Pelias to let her rejuvenate their father in the same way. Instead, she cut him up and killed him. The figure to the right of the cauldron is labelled “Jason”, although his white hair suggests an older man.\
See a later stage of the Medea myth: Medea with the Poisoned Cloak.