Otto Rosenberg (28 April 1927–4 July 2001), was a Holocaust survivor, author of A Gypsy in Auschwitz (1999), activist, and founder of Sinti Union of Berlin and Organization for German Sinti and Roma.
[4] In 1995, Rosenberg recorded his memories on tape, and with writer Ulrich Enzenberger he published Das Brennglas in 1998.
[5] Michael Grobbel notes the book's 'colloquial and at time laconic style', as a result of the book staying true to its oral origins, and explains how Rosenberg discusses the continued 'persistance of racial intolerance after 1945'.
The book features an introduction from former Lord Mayor of Berlin Klaus Schütz.
[8] In 1970, Rosenberg founded the Berlin-Brandenburg State Association of German Sinti and Roma, and he remained chairman until his death.