Götz Friedrich (4 August 1930 in Naumburg, Germany – 12 December 2000 in Berlin, Germany) was a German opera and theatre director. He was a student and assistant of Walter Felsenstein at the Komische Oper Berlin in (East) Berlin, where he went on to direct his early productions. He first came to international prominence with a controversial 1972 production of Wagner's Tannhäuser at Bayreuth. He defected to the West whilst working on a production of Jenůfa in Stockholm later the same year. From 1972 to 1981 he was principal director at the Hamburg State Opera.
https://en.wikipedia.org/wiki/G%C3%B6tz_Friedrich