Perseus and Andromeda (Leighton) daughters of Poseidon, the god of the sea. When the nymphs became aware of her claims, they protested to their father, who retaliated by calling up a sea monster called Cetus to patrol and wreak havoc along the coastline of Ethiopia placing Cassiope's kingdom at risk. In response the Queen, together with her husband Cepheus, decided to sacrifice her daughter, Princess Andromeda, to the monster. Andromeda was chained to a rock at the edge of the sea as an offering to the monster. Perseus was travelling back home on his winged horse, Pegasus, after battling with Medusa. He rescued Andromeda
Medusa Rondanini to Napoleonic Paris, it was the "Medusa Rondanini" that served as the model for the gorgon's head in Perseus' outstretched hand. The "Medusa Rondanini" may be a Roman copy of a classical work of the fifth century BC, a model attributed to one or another Athenian sculptor of the age of Phidias. Alternatively, it may have been modeled after a classicising Hellenistic work of the late fourth century BC. If it is of the fifth century, Janer Danforth Belson has pointed out, it is the first of the "beautiful gorgoneion" type to appear in Greek art by more than a