- 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 295th evening of the season.
Pyotr Tchaikovsky, Iolanthe (for the 8th time this season).
Richard von Goldberger, Forget-Me-Not (for the 18th time this season). Conductor: Joseph Hellmesberger Jr.