Wikipedia
Wyszembork
Wyszembork (German Weißenburg) is a village in the administrative district of Gmina Mrągowo, within Mrągowo County, Warmian-Masurian Voivodeship, in northern Poland. It lies approximately north-east of Mrągowo and east of the regional capital Olsztyn.
Before 1945 the area was part of Germany ( East Prussia). Following World War II the native German populace was expelled and replaced by Poles.