It was built by the Teutonic Knights, a sort of class of warrior monk crusaders, as a safe haven. It absolutely achieved that goal. It turned into a sovereign state for them, eventually housing ...
Whether it was the Teutonic Knights on frozen Lake Peipus in 1242 A.D., the French fighting the Russians during a blizzard at Eylau in 1807, or the Western Front freezing during the winter of 1916 ...
The items are now housed in a museum built in a former castle for the knights of the Teutonic Order. Screengrab from Muzeum W Ostródzie's Facebook post History enthusiasts using metal detectors ...