Economic administrator at Allenstein
· Olsztyn Castle (Allenstein), Olsztyn, Poland

Wikimedia Commons · Creative Commons Attribution-ShareAlike 3.0 Poland · file Copernicus resided in Olsztyn Castle as administrator of the Warmian chapter's estates and later directed the defense of Allenstein during the Polish-Teutonic War. The date marks the beginning of the documented 1516–1521 castle residence.