Depictions of ancient myths were a popular subject for ceramic decoration during the Renaissance. This pharmacy jar features the myth of Perseus and Andromeda. According to Greek mythology, a sea monster was sent to destroy the kingdom of Ethiopia after Queen Cassiopeia offended the sea nymphs. To appease the gods, Andromeda was chained to a rock and offered as a sacrifice to the monster. Before the creature could devour her, Perseus flew in on his winged horse and slayed the beast.