According to the Third Reich 's racial policies , local Jews then became the main target of German repressions in the region . Following German occupation , the Jewish population was concentrated in the Lwów Ghetto established in the city 's Zamarstynów ( today '' Zamarstyniv '' ) district , and the Janowska concentration camp was also set up . In 1931 there were 75,316 Yiddish-speaking inhabitants , but by 1941 approximately 100,000 Jews were present in Lviv . The majority of these Jews were either killed within the city or deported to Belzec extermination camp . In the summer of 1943 , on the orders of Heinrich Himmler , SS-Standartenführer Paul Blobel was tasked with the destruction of any evidence of Nazi mass murders in the Lviv area . On 15 June Blobel , using forced labourers from Janowska , dug up a number of mass graves and incinerated the remains . Later , on 19 November 1943 , inmates at Janowska staged an uprising and attempted a mass escape . A few succeeded , but most were recaptured and killed . The SS staff and their local auxiliaries then , at the time of the Janowska camp 's liquidation , murdered at least 6,000 more inmates , as well as the Jews in other forced labour camps in Galicia . By the end of the war , the Jewish population of the city was virtually eliminated , with only around 200 to 800 survivors remaining
Third Reich 's racial policies
The Holocaust
Lviv