Nidzica (former German: Neidenburg; formerly Nibork in Polish) is a town in the Warmian-Masurian Voivodeship in Poland, between Olsztyn and Mława. It has a population of 14,798 (2004). It is the capital of Nidzica County.

Castle of the Teutonic Knights in Nidzica

The castle in Nidzica (German Neidenburg) was built around 1370 by the Grand Master of the Teutonic Order, Winrich von Kniprode, as one of the major strategic points in the defence system of the Teutonic state. The Gothic fortress was raised on a high hill, east of a medieval settlement and replaced a wooden watchtower fort of the 13th century, which had stood at the site of the present outer ward of the castle.  (more)

fot. Teutonic castle in Nidzica source www.pl.wikipedia.org