The paper discusses different appropriation strategies applied to the same historical region of East Prussia. By dating the beginning of the symbolic appropriation to the early 19th century, the author reviews the strategies, first applied by Germans and Poles, and later also by Lithuanians and Russians, to make East Prussia or their respective part (Warmia and Masuria, Lithuania Minor, and the Kaliningrad Oblast) their own. This is demonstrated by several periods, starting with the situation before 1914, the First World War, the interwar period, and the Second World War, when East Prussia still existed; and finishing with the postwar period and the changes after 1989. A distinction is made between national and regional East Prussia appropriation strategies, as well as different levels of the process, i.e. publicistic (literary) and practical.