Andromeda (constellation) daughter to Cetus. She was chained to a rock by the sea but was saved by the hero Perseus, who in one version of the story used the head of Medusa to turn the monster into stone; in another version, by the Roman poet Ovid in his Metamorphoses, Perseus slew the monster with his diamond sword. Perseus and Andromeda then married; the myth recounts that the couple had nine children together – seven sons and two daughters – and founded Mycenae and its Persideae dynasty. After Andromeda's death Athena placed her in the sky as a constellation, to honor her.
The Sea Monster bring motifs together in a single image. The abduction of a woman by a water-god is one of the oldest Greek mythological conceptions and a subject that fascinated men through to the Renaissance. Dürer adds a layer of complexity to the scene in that the woman does not seem too upset at her fate. Vasari gave an early description of the work, through a vague description of a picture of a nymph set in the ancient world. Recent interpretations mention the abduction of Scylla by the sea demon Glaucus, or the abduction of Hesione by a monster. Further speculation centres