Perseus shield. Perseus then proceeded to the Gorgons' cave. In the cave he came upon the sleeping Medusa. By viewing Medusa's reflection in his polished shield, he safely approached and cut off her head. From her neck sprang Pegasus ("he who sprang") and Chrysaor ("sword of gold"), the result of Poseidon and Medusa's mating. The other two Gorgons pursued Perseus, but, wearing his helm of darkness, he escaped. From here he proceeded to visit King Atlas who had refused him hospitality; in revenge Perseus turned him to stone. On the way back to Seriphos Island, Perseus stopped in the kingdom of
Perseus she had before been promised. At the wedding a quarrel took place between the rivals, and Phineus was turned to stone by the sight of Medusa's head that Perseus had kept. Andromeda ("queen of men") followed her husband to Tiryns in Argos, and became the ancestress of the family of the Perseidae who ruled at Tiryns through her son with Perseus, Perses. After her death she was placed by Athena among the constellations in the northern sky, near Perseus and Cassiopeia. Sophocles and Euripides (and in more modern times Pierre Corneille) made the episode of Perseus and Andromeda the subject