Maria Trzcińska
Maria (Marianna) Trzcińska (22 March 1931 – 22 December 2011 in Warsaw) was a Polish judge employed for over 30 years in the People's Republic of Poland at the Chief Commission for the Investigation of Nazi Crimes in Poland (Główna Komisja Badania Zbrodni Hitlerowskich w Polsce). She investigated and researched German World War II crimes in Poland.
Trzcińska was the author of a controversial monograph about the Warsaw concentration camp (KL Warschau) set up by the SS in occupied Poland. The book, published in the 1990s, presented a fringe theory which a decade later was definitively rejected by historians. Until 2007, however, her book was the only monograph dedicated to the camp.