opera by Alfredo Catalani (1892), libretto by Luigi Illica

1921 film by Ewald André Dupont

German article in Die Gartenlaube, 1870, no. 3–18, 21–22, 38–52

German article in Die Gartenlaube, 1870, no. 22, 38–52

German article in Die Gartenlaube, 3–18, 21

1879 novel by Wilhelmine von Hillern

1875 novel by Wilhelmine von Hillern

Wilhelmine von Hillern 1876

1878 play by Wilhelmine von Hillern

One-act play written by Wilhelmine von Hillern

Dramatic joke in one act by Wilhelmine von Hillern