question: Which country Heinz Heydrich's father is from?
context: Title: Heinz Heydrich
  Passage: Heinz Siegfried Heydrich (29 September 1905 – 19 November 1944) was the son of Richard Bruno Heydrich and the younger brother of SS-Obergruppenführer Reinhard Heydrich. After the death of his brother, Heinz Heydrich helped Jews escape the Holocaust.
  Title: Richard Bruno Heydrich
  Passage: Richard Bruno Heydrich (23 February 1865 – 24 August 1938) was a German opera singer (tenor), and composer. He was the father of SS Obergruppenführer Reinhard Heydrich, an architect of the Final Solution, and Heinz and Maria Heydrich.
answer: German
citations: Richard Bruno Heydrich Heinz Heydrich