King Acrisius of Argos was warned by an oracle that he would be killed in time by a son born to his daughter Danae. so that she would never marry or have children.
Then king promptly locked Danae up in a tower and threw away the key. But the god Zeus got in, disguised as a shower of gold, with the result that Perseus was born. So Acrisius straightaway stuck daughter and infant into a brazen chest and pushed it out to sea. Perhaps he expected it to sink like a stone, but instead it floated quite nicely, fetching up on a beach on the island of Seriphoss. There a fisherman named Dictys came upon the unusual bit of flotsam and adopted a protective attitude toward its contents. Thus Perseus had the advantage of a pure and simple role model as he grew to young manhood. Then one day Dictys's brother, who happened to be king in those parts, took a fancy to Danae and pressed his attentions upon her.