バイロイト祝祭劇場
Albert Wilhelm Karl Niemann (15 January 1831 – 13 January 1917) was a leading German tenor opera singer especially associated with the operas of Richard Wagner. He gave important premieres in France, Germany, England and the United States, and played Siegmund in the first complete production of "Der Ring des Nibelungen" (Bayreuth Festspielhaus 1876).