"Theseus and Peirithous, those legendary children of the gods."

 Theseus and Peirithous were two Greek heroes and friends, who descended to the Underworld in a plot to abduct Persephone to be Peirithous’ bride. An angry Hades tricked and captured them. Heracles managed to free Theseus, but Peirithous remained forever trapped in the Underworld.