Few German records about the operation of the Gross-Rosen concentration camp subcamps in Breslau (Polish: Wrocław) have survived. The information below is based on available studies and on the accounts of witnesses—former prisoners of those camps. Some of the information concerns both Breslau I and Breslau II. Wrocław’s Gross-Rosen subcamps were formed in consequence of an operation to put Gross-Rosen concentration camp prisoners to work in the Third Reich’s arms industry (Breslau I, Breslau II, Breslau-Hundsfeld) and serving the army (Breslau-Lissa). No exact date can be established for when the Breslau I subsidiary was formed; mid-1944 is most likely. The Breslau weaponry command’s war log (Kriegstagebuch des Rüstungskommandos Breslau) for the second quarter of 1944 only refers to talks held on June 18, 1944, at the Fahrzeug- und Motorenwerke (Famo-Werke) plant on the construction of the camp, during which the participants stressed that it had to be done soon. The accounts of form...