King Grisly Beard

and when the king heard him, he said, 'Let him come in.' So they brought in a dirty-looking fellow; and when he had sung before the king and the princess, he begged a boon. Then the king said, 'You have sung so well, that I will give you my daughter for your wife.' The princess begged and prayed; but the king said, 'I have sworn to give you to the first comer, and I will keep my word.