What opera company has its permanent home as he Staatsoper Unter den Linden and had Franz Betz as an opera singer in the 1800's?
Franz Betz Franz Betz (19 March 1835 – 11 August 1900) was a German bass-baritone opera singer who sang at the Berlin State Opera from 1859 to 1897. He was particularly known for his performances in operas by Richard Wagner and created the role of Hans Sachs in "Die Meistersinger von Nürnberg".
Sophie Diez Sophie Diez or Dietz ("née" Hartmann) (1 September 1820 – 3 May 1887) was a German soprano who sang leading roles with the Munich Hofoper (now known as the Bavarian State Opera) in a career spanning 40 years. She is most remembered today for having created the role of Magdalena in Wagner's "Die Meistersinger von Nürnberg", but she also sang in the world premieres of several other operas by lesser-known German composers.