Perseus (constellation) may be derived from the Babylonian Old Man (MUL.SHU.GI) constellation, then associated with East in the MUL.APINan astronomical compilation dating to around 1000 BCE. In Greek mythology, Perseus was the son of Danaë, who was sent by King Polydectes to bring the head of Medusa the Gorgon — whose visage caused all who gazed upon her to turn to stone. Perseus slew Medusa in her sleep, and Pegasus and Chrysaor appeared from her body. Perseus continued to the realm of Cepheus whose daughter Andromeda was to be sacrificed to Cetus the sea monster. Perseus rescued Andromeda from the monster by
Perseus with the Head of Medusa 1554, Michelangelo’s "David", Bandinelli’s "Hercules and Cacus", and Donatello’s "Judith and Holofernes" were already erected in the piazza. The subject matter of the work is the mythological story of Perseus beheading Medusa, a hideous woman-faced Gorgon whose hair was turned to snakes and anyone that looked at her was turned to stone. Perseus stands naked except for a sash and winged sandals, triumphant on top of the body of Medusa with her snakey head in his raised hand. The body of Medusa spews blood from her severed neck. The bronze sculpture and Medusa’s head turns men to stone and is