Der Froschkönig [oder, Der eiserne Heinrich].
Contributors: Grimm, Wilhelm, 1786-1859.
Publisher: s.n.
Published: 1900
Place of publication: [Germany?
Subjects: Fairy tales -- Germany; Folklore -- Germany
Other titles: Eiserne Heinrich
Description: As payment for retrieving the princess' ball, the frog exacts a promise the princess is reluctant to fulfill.