He rescued the daughter of Cassiopea and Cepheus from a sea monster before taking that girl, Andromeda, as his wife.
According to one story, this figure founded a city when his efforts in digging up a mushroom revealed a spring. That city was ruled by Electryon and Sthenelus, members of a namesake dynasty he founded. When this ruler was unable to assume the throne of Argos, he traded realms with Megapenthes. This man was sent on a quest by a king of Seriphus named (*) Polydectes during which he stole the tooth and eye of the Graeae. He rescued the daughter of Cassiopea and Cepheus from a sea monster before taking that girl, Andromeda, as his wife. His mother Danae was locked in a tower by King Acrisius to avoid a prophecy, but he was conceived by Zeus in the form a stream of gold. For 10 points, name this hero who used winged sandals and the helmet of invisibility to slay Medusa.
According to one story, this figure founded a city when his efforts in digging up a mushroom revealed a spring.
{Perseus}