• Chronology: Year 1900
• Location: Vienna State Opera (Hofoper, Wiener Staatsoper)
• Program: Iolanthe
• Conductor: Gustav Mahler (1860-1911)
• Orchestra: Vienna State Opera Orchestra
• Stage design: 
• Notes: Vienna State Opera repertoire Gustav Mahler

The 231st evening of the season.

Vienna Premiere

Pyotr Tchaikovsky, Iolanthe (for the 1st time this season).

Leo Delibes (1836-1891), Sylvia (Ballet) (for the 11st time this season). Conductor: Josef Bayer.

Pertinent newspaper articles from the following sources are in the archives:

Fremden-Blatt, March 23, 1900 (Wien).
Deutsche Zeitung, March 23, 1900 (Wien).
Illustriertes Wiener Extrablatt, March 23, 1900 (Wien).
Neue Freie Presse, March 23, 1900 (Wien).
Neues Wiener Journal, March 23, 1900 (Wien).
Wiener Abendpost, March 23, 1900 (Wien).