Štika Jarek, Erotic in Classical Musical Works

Čertova stěna (The Devil's Wall) is a comic-romantic opera in three acts, with music by Bedrich Smetanaand libretto by Eliska Krasnohorska

La Chaste Suzanne, (Chaste Suzanne, cz. Cudná Zuzana), operette by Jean Gilbert and libretto by Georg Okonkowski
 

Der fliegende Holländer (The Flying Dutchman, cz. Bludný Holanďan), Richard Wagner

Der Bettelstudent (The Beggar Student, cz. Žebravý student), Karl Millöcker

Romeo and Juliet,  Charles Gounod to a French libretto by Jules Barbier and Michel Carré 

Madam Butterfly,  Giacomo Puccini

Švanda Dudák (Schwanda the Bagpiper), Vojtěch Hřímalý younger, libretto by Jindřich Hanuš Böhm

Don Quijote, opera by Wilhelm Kienzl

Der Rosenkavalier (The Knight of the Rose) is a comic opera in three acts by Richard Strauss to an original German libretto by Hugo von Hofmannsthal and Harry von Kessler

Rusalka, opera by Antonín Dvořák, libretto by Jaroslav Kvapil

Lohengrin, opera by Richard Wagner and also operetic melodrama by Salvatore Sciarrino.
Lohengrin is the son of Percival, he is called The Knight of The Swan, he was sent in a boat pulled by swans to rescue a maiden who can never ask his identity. Compare with two picture below.

Don Giovanni, full name Il dissoluto punito ossia il Don Giovanni, opera by Wolfgang Amadeus Mozart, libretto Lorenzo da Ponteo

La Bayadère (The Temple Dancer), ballet by French choreographer Marius Petipa to the music of  Ludwig Minkus.

Leichte Kavallerie (Light Cavalry) is an operetta in three acts by Franz von Suppé, with a libretto by Karl Costa.

Zar und Zimmermann (Tsar and Carpenter) is an opera in three acts, music by Albert Lortzing, libretto by the composer after Georg Christian Römer's Der Bürgermeister von Saardam, oder Die zwei Peter

Pagliacci (Players, or Clowns, Komedianti in Czech), opera consisting of a prologue and two acts written and composed by Ruggero Leoncavallo

Die Zauberflöte (The Magic Flute)  is an opera in two acts composed in 1791 by Wolfgang Amadeus Mozart to a German libretto by Emanuel Schikaneder.

Carmen is an opera in four acts by the French composer Georges Bizet, based on novella by Prosper Merimée.

Die Puppenfee (The Fairy Doll, cz. Královna loutek) is a ballet, music by Josef Bayer, libretto by Joseph Hassreiter and Franz Gaul.

Link: thanks to mac1

Lohengrin as The Knight of The Swan - postcard from about 1900.












Lohengrin's arrival (in Brabant). Mural in the Salon of the castle Neuschwanstein, Bavaria,
August von Heckel, 1882/83