Their father, Richard Bruno Heydrich, was an opera singer, the founder of a music conservatory in Halle, and a German Nationalist who instilled patriotic ideas in the minds of his three children.

[4] Heinz Heydrich was an Obersturmführer (lieutenant), journalist, and publisher of the soldiers' newspaper, Die Panzerfaust.

[6][7] Thereafter, Heydrich helped at least two Jews escape by forging identity documents and printing them on Die Panzerfaust presses.

[8][9] When in November 1944 an economic commission headed by a State Attorney investigated the editorial staff of Die Panzerfaust, Heinz Heydrich thought he had been discovered and shot himself in order to protect his family from the Gestapo.

[11] According to his nephew Heider, however, Heydrich committed suicide because of a pending court martial case against him for theft and corruption.

His oldest, Peter Thomas Heydrich [de] (1931–2000), was a well-known German cabaret singer, and wrote a book about his childhood, father, and uncle.