"Helge Rosvaenge (born Helge Anton Rosenvinge Hansen, August 29, 1897 – June 17, 1972) was a Danish operatic tenor whose career was centred on Germany and Austria, before, during and after World War II. His last name is sometimes spelled Roswaenge or Rosvænge.
Rosvaenge was born in Copenhagen. He made his debut at Neustrelitz as Don Jose in Carmen in 1921. Engagements followed at Altenburg, Basel, Cologne (1927–30) and the Berlin State Opera, where he was leading tenor from 1930 to 1944, being especially distinguished in the Italian repertory. He also sang regularly at the Vienna State Opera from 1936, and in Munich. Rosvaenge also appeared at the Salzburg Festival, making his debut there in Der Rosenkavalier. Other roles which he performed at Salzburg between 1933 and 1939 were Tamino in The Magic Flute, Huon in Oberon and Florestan in Fidelio. His London debut at the Royal Opera House, Covent Garden, occurred in 1938, as Florestan." - (en.wikipedia.org 29.01.2020)