Marienwerder

Regierungsbezirk Marienwerder was an administrative region, of Prussia from 1815-1945. Marienwerder region was part of the Province of West Prussia from 1815–1829, and again 1878–1920, belonging to the Province of Prussia in the intermittent years. Marienwerder region was then placed under an inter-allied commission from 1920-22. It was known as Regierungsbezirk Westpreußen ("West Prussia") while it was joined to the Province of East Prussia from 1922–39, after which its original name was restored until its dissolution in 1945. Since that time it remains as part of Poland.