Hans Maršálek

Hans Maršálek was an Austrian typesetter, political activist, detective, historian, and spy for the Czechoslovak secret police. A devout socialist and active in the resistance, he was arrested by the Nazis and imprisoned in the Mauthausen concentration camp. After the war, he joined the Austrian political police and was instrumental in tracking down and convicting numerous Nazi criminals. He also became the main chronicler of the camp's history, helped establish the Mauthausen Memorial Museum, and published several books. Jan Marsalek, a fugitive former businessman and confirmed spy operative for Russia, is his grandson.