Prior to this, from 1752 to 1818 there was a Mohrungen district in East Prussia, which however, encompassed a much larger area.
The Geserichsee was also the starting point of the Oberland Canal, which, leading to Elbing, crossed the district from south to north.
[1] From time immemorial, the important trade route from Elbing to Warsaw led through the area.
The district of Mohrungen was located in the historical regions of Pomesania and Pogesania described by the chronicler Peter of Dusburg in 1324.
When they migrated to the west from the 6th century onwards, the Old Prussians coming from the Baltic region settled in the area.
After the founding of the Kingdom of Prussia, the administrative system was reorganized and the individual parts of the country were subdivided into new districts.
The newly delimited district of Mohrungen included the parishes of Alt Christburg, Altstadt, Arnsdorf, Eckersdorf, Herzogswalde, Jäskendorf, Kahlau, Liebstadt, Liebwalde, Miswalde, Mohrungen, Reichau, Saalfeld, Samrodt, Schnellwalde, Silberbach, Simnau, Sonnenborn und Venedien, Weinsdorf and Wilmsdorf.
However, given the poor road conditions and the rapid advance of enemy troops, the escape ended in chaos.
In the summer of 1945, the district of Mohrungen was placed under Polish administration by the Soviets in accordance with the Potsdam Agreement, together with the southern half of East Prussia.
In the period that followed, the German population was largely expelled from the district by the local Polish administrative authorities.
Today the territory of the district is located in the northwestern part of the Polish Warmian-Masurian Voivodeship.