The Frontier March of Posen–West Prussia was a province of Prussia that existed from 1920 and 1922 until its dissolution in 1938. It comprised most of the former territory of West Prussia and parts of
The Province of West Prussia was a province of Prussia from 1773 to 1829 and from 1878 to 1919. West Prussia was established as a province of the Kingdom of Prussia in 1773, formed from Royal Prussia
Posen–West Prussia
…a province of Prussia that existed from 1920 (de facto) and 1922 (de jure) until its dissolution in 1938. It comprised most of the former territory of West Prussia and parts of the Province of Posen that had remained within Germany following the territorial losses to the Second Polish Republic after the Greater…
The fortress Ordensburg Marienburg in Malbork, Poland. Founded in 1274 by the Teutonic Order on the river Nogat, it is the world's largest brick castle. It served as one of several royal residences of the Polish kings from 1466 until 1772.