Perseus

Summary
Perseus is the legendary founder of Mycenae and of the Perseid dynasty of Danaans, and was the first Greek hero. His exploits in defeating various archaic monsters provided the founding mythis of the Twelve Olympians. Perseus beheaded the gorgon Medusa and saved Andromeda from the sea monster Cetus. Perseus was the son of the mortal Danae and the god Zeus. This makes him the great-grandfather of Heracles.