Wikipedia
Zwierzewo
Zwierzewo is a village in the administrative district of Gmina Ostróda, within Ostróda County, Warmian-Masurian Voivodeship, in northern Poland. It lies approximately east of Ostróda and west of the regional capital Olsztyn.
Before 1945 the area was part of Germany ( East Prussia). After World War II the region was placed under Polish administration and ethnically cleansed according to the post-war Potsdam Agreement. The native German populace was expelled and replaced with Poles.