MasuriaMasuria (, Masuren, Masurian: Mazurÿ) is a ethnographic and geographic region in northern and northeastern Poland, known for its 2,000 lakes. Masuria occupies much of the Masurian Lake District. Administratively, it is part of the Warmian-Masurian Voivodeship (administrative area/province). Its biggest city, often regarded as its capital, is Ełk (Elk). The region covers a territory of some 10,000 km2 which is inhabited by approximately 500,000 people.
WarmiaWarmia (Warmia; Latin: Varmia, Warmia; ; Warmian: Warńija; Varmė; Old Prussian: Wārmi) is both a historical and an ethnographic region in northern Poland, forming part of historical Prussia. Its historic capitals were Frombork and Lidzbark Warmiński and the largest city is Olsztyn. Varmia is currently the core of the Warmian-Masurian Voivodeship (province). The region covers an area of around and has approximately 350,000 inhabitants.
Prussia (region)Prussia (Old Prussian: Prūsa; Preußen; Prūsija; Prusy; Пруссия, Pruthenia/Prussia/Borussia) is a historical region in Europe on the south-eastern coast of the Baltic Sea, that ranges from the Vistula delta in the west to the end of the Curonian Spit in the east and extends inland as far as Masuria. This region is often also referred to as Old Prussia. Tacitus's Germania (98 AD) is the oldest known record of an eyewitness account on the territory and its inhabitants.
Kaliningrad OblastKaliningrad Oblast (Калининградская область) is the westernmost federal subject of the Russian Federation. It is a semi-exclave situated on the Baltic Sea. The largest city and administrative centre of the province (oblast) is the city of Kaliningrad, formerly known as Königsberg. The port city of Baltiysk is Russia's only port on the Baltic Sea that remains ice-free in winter. Kaliningrad Oblast had a population of roughly 1 million in the Russian Census of 2021.
