L'Aiglon is an opera (drame musical) in five acts composed by Arthur Honegger and Jacques Ibert. Honegger composed Acts II, III, and IV, with Ibert composing Acts I and V. A 2016 reviewer described it as "a singular piece of work" with its "blend of operetta, divertissement, conversation piece, historical pageant and, in the disturbingly powerful fourth act set on the Napoleonic battlefield at Wagram, phantasmagoria peopled with living figures onstage and dead voices off".

Librettist Henri Cain (Based on Edmond Rostand's 1900 play, L'Aiglon ("The Eaglet"), about the life of Napoleon II, who was the son of Emperor Napoleon I and his second wife, Empress Marie Louise.)
Date of composition 1937
Premiered 1937, March 10th in Monte Carlo, Monaco-Ville, Monaco
Type Operetta
Catalogue H 108
Spoken language French
Instruments Orchestra
Voice (Bass) - Séraphin Flambeau, Aiglon's footman
Voice (Soprano) - L'Aiglon/The Duke of Reichstadt, son of Napoleon
Voice (Tenor) - The French attaché
Voice (Contralto) - Countess Camerata
Voice (Bass) - Le Chevalier de Prokesch-Osten
Voice (Bass-Baritone) - Prince Metternich
Voice (Mezzo-Soprano) - Marie-Louise
Voice (Mezzo-Soprano) - Fanny Elssler
Voice (Tenor) - Comte de Sedlinsky
Voice (Tenor) - Frédéric de Gentz
Voice (Baritone) - Maréchal Marmont
Voice (Soprano) - Thérèse de Lorget
Autotranslations beta Arthur Honegger: L'Aiglon, H 108
Arthur Honegger: L'Aiglon, H 108
Arthur Honegger: L'Aiglon, H 108