Kammala jumla mai zuwa: Saboda ƙiyayya da tsanantawa a cikin 1920s da 1930s, yawan Yahudawa na Königsberg ya ragu a lokacin da Jam'iyyar Nazi ta karɓi iko ta hanyar "Machtergreifung" a 1933. A wannan shekarar Yahudawa 3,500 ne kawai suke zaune a birnin. Dokokin anti-Yahudawa a cikin Nazi Jamus kafin yaƙin, wanda Erich Koch ya tilasta, ya ƙuntata kasuwanci kuma ya sa yahudawan Königsberg da yawa suka yi ƙaura, galibi zuwa Amurka da Burtaniya. Michael Wieck ya rubuta game da nuna bambanci da ya sha daga Hitler Youth. A buɗe Ostmesse na 1935, Hjalmar Schacht ya soki tsanantawar ba tare da amfani ba. Tsanantawa ya sa al'ummar Yahudawa su kirkiro wata makarantar Yahudawa ta musamman don ɗalibai 82 a watan Afrilu 1935; ya girma ya ƙunshi ɗalibai 180 a cikin azuzuwan 6 tare da malamai 4 a watan Oktoba na 1935. A watan Fabrairun 1938, jaridar farfagandar "Der Student der Ostmark" ta buga sunayen 'yan kasuwa na Yahudawa 201, likitoci 38, da lauyoyi 22 da suka rage a cikin garin, wanda Sturmabteilung ya yi amfani da shi a lokacin
Dare na Gilashin Gilashi a watan Nuwamba 1938. An ƙone Sabon Majami'a, majami'ar Orthodox Adass Jisroel da makabarta biyu sun lalace; an kai hari kan makarantar Yahudawa amma an sake buɗewa daga baya, kamar yadda majami'ar Orthodox take, inda Michael Wieck ya zama Bar Mitzva a tsakiyar 1941. Yawancin mazaunan Yahudawa an tura su zuwa sansanonin Nazi a cikin Jamus.