In November 1940, during the Nazi Occupation of Poland, German authorities established a Jewish ghetto in Grójec, in order to confine its Jewish population for the purpose of persecution and exploitation. The ghetto was liquidated in February 1941, when almost all of its inhabitants (5,200–6,000) were transported in cattle trucks to Warsaw Ghetto, the largest ghetto in all of Nazi occupied Europe with over 400,000 Jews crammed into an area of . From there, most inmates were sent to Treblinka extermination camp. Only a group of Jewish craftsmen was left in Grójec, however, they were also annihilated in a mass execution in Dębówka, near Góra Kalwaria.