() stems from that era, to distinguish the Western Pomeranian areas south of the Peene River gained by Prussia in 1720 (Old Western Pomerania or Altvorpommern) from the northern regions gained in 1815 and to replace the outdated term Principality of Rügen. When merged into the province in 1815, Neuvorpommern was guaranteed her constitution to be left in place. The administration was led by the former Swedish general governour, prince Malte von Putbus, until was officially created in 1818. Prussian law ( and ) was not enforced, and the Swedish jurisdiction with the court in Greifswald was left in place. Regierungsbezirk Stralsund was fused into Regierungsbezirk Stettin in 1932. Subdivisions urban districts (): Stralsund: split off Landkreis Franzburg-Barth in 1874, population 31,076 (1900) Greifswald: split off Landkreis Greifswald in 1913 rural districts (): Landkreis Franzburg-Barth: population 41,704 (1900) Landkreis Greifswald: population 61,840 (1900) Landkreis Grimmen: population 35,540 (1900) Landkreis Rügen (capital Bergen auf Rügen): population 46,270 (1900) Posen-West Prussia government region The Posen-West Prussia government region () was created in 1938 from the northern part of the former Prussian province of Posen-West Prussia, known as the Schneidemühl government region. Following World War I, most of the Prussian provinces of Posen and West Prussia became part of the Second Polish Republic. The remainders of these provinces formed the province of Posen-West Prussia, combining small German-settled regions all along the new German-Polish border ( meaning border march''). In 1938, this province was dissolved and partitioned between Pomerania, Brandenburg and Silesia. The Pomeranian share was extended by the districts of Neustettin and Dramburg, formerly administered by Regierungsbezirk Köslin. The formerly Branderburgian districts of Arnswalde and Friedeberg were also incorporated into the Posen-West Prussia government region. During World War II, it became a battlefield and was occupied by the Red Army in early 1945. Shortly thereafter, by the terms of the Potsdam Agreement, the Grenzmark became part of Poland and the remaining German population was expelled. Subdivisions urban districts (): Schneidemühl rural districts (): Landkreis Arnswalde Landkreis Deutsch Krone Landkreis Dramburg Landkreis Flatow Landkreis Friedeberg Nm. Netzekreis (capital: Schönlanke) Landkreis Neustettin Landkreis Schlochau Demographics 1818: The province with an estimated area of 540 (Prussian) square miles had a population of 630,000. The Prussian state official ("Staatsminister") von Beyme stated in his report, that the province was in a "low state of population and culture". 1823: In 1823, Georg Hassel published the following data about