The Devil's Sooty Brother
But when she heard that she was to be married to a common fellow in a smock-frock, she said, "Rather than do it, I would go into the deepest water." Then the King gave him the youngest, who was quite willing to do it to please her father, and thus the Devil's sooty brother got the King's daughter, and when the aged King died, the whole kingdom likewise.
From Jacob and Wilhelm Grimm, Household Tales, trans. Margaret Hunt (London: George Bell, 1884)