The video describes the mythological love story between Hades, god of Darkness, and Persephone, the. TOP: "Crossing the River Styx" painted by Jacob Isaacz van Swanenburg. In Greek mythology, Styx was the name of a river which formed the boundary between. Hades was the ancient Greek king of the underworld and god of the dead. I surmise; and if that ancient tale of ravishment is true, you too were joined in love. God of : The dead, king of the underworld.