War II, the town initially passed to Poland under its historic Polish name Darkiejmy, however, it was soon annexed by the Soviet Union. Its German populace was expelled in accordance to the Potsdam Agreement. It was renamed as Ozyorsk on 7 September 1946. In 1970, the Department of Printed Circuits was established as a branch of the Radiotechnical Measuring Instruments Factory in Vilnius. Administrative and municipal status Within the framework of administrative divisions, Ozyorsk serves as the administrative center of Ozyorsky District. As an administrative division, it is incorporated (together with the rural locality Ushakovo) within Ozyorsky District as the town of district significance of Ozyorsk. Within the framework of municipal divisions, since June 11, 2014, the territories of the town of district significance of Ozyorsk and of three rural okrugs of Ozyorsky District are incorporated as Ozyorsky Urban Okrug. Before that, the town of district significance was incorporated within Ozyorsky Municipal District as Ozyorskoye Urban Settlement. Culture The Central Library is the town's main public library. The Jan Kochanowski Association of Polish Culture is a cultural institution of the local Polish community, which also offers teaching of Polish language, history, geography and literature. Notable residents Gustav Bauer (1870–1944), politician and Chancellor of Germany in 1919-1920 Heinz Ziegler (1894–1972), Wehrmacht general Sergei Skripal (born 23 June 1951), former Russian military intelligence officer who acted as a double agent for the UK's intelligence services during the 1990s and early 2000s. References Notes Sources Cities and towns in Kaliningrad Oblast Ozyorsky District, Kaliningrad Oblast