Prussia

Prussia, German Preussen, Polish Prusy, in European history, any of certain areas of eastern and central Europe, respectively (1) the land of the Prussians on the southeastern coast of the Baltic Sea, which came under Polish and German rule in the Middle Ages, (2) the kingdom ruled from 1701 by the German Hohenzollern dynasty, including Prussia and Brandenburg, with Berlin as its capital, which seized much of northern Germany and western Poland in the 18th and 19th centuries and united Germany under its leadership in 1871, and (3) the Land (state) created after the fall of the Hohenzollerns in 1918, which included most of their former kingdom and which was abolished by the Allies in 1947 as part of the political reorganization of Germany after its defeat in World War II.

flag of Prussia

The original Prussians, mainly hunters and cattle breeders, spoke a language belonging to the Baltic group of the Indo-European language family. These early Prussians were related to the Latvians and Lithuanians and lived in tribes in the then heavily forested region between the lower Vistula and Neman rivers. Their social organization was loose—although some elements of stratified society can be traced—and they were pagans. Early attempts to convert the Prussians to Christianity—notably those made by Saint Adalbert and Saint Bruno of Querfurt at the turn of the 11th century—were unsuccessful. In the 13th century, however, the Prussians were conquered and Christianized by the German-speaking knights of the Teutonic Order, which had been awarded Prussian lands by the Polish duke Conrad of Mazovia for help against Prussian incursions. The Prussian countryside was subdued, castles were built for German nobility, and many German peasants were settled there to farm the land. By the middle of the 14th century, the majority of the inhabitants of Prussia were German-speaking, though the Old Prussian language did not die out until the 17th century. By the 17th century the indigenous population was thoroughly assimilated.

The latter part of the 14th century was characterized in eastern Europe by a strong reaction among Slavs and Balts against the Germans. Poland and Lithuania formed their first dynastic union in 1386 and, in the 15th century, defeated the Teutonic Knights in a series of wars. By the Second Treaty of Toruń (1466) the Polish crown acquired direct sovereignty over the Teutonic Order’s former possessions to the west of the lower Vistula River, together with the Kulmerland (or Chełmno district) and Ermland (Warmia) to the east; and that part of Prussia east of the Vistula River (i.e., East Prussia) was left to the order only on condition that the grand, or high, master should hold it as fief of the Polish crown. The lands along the Vistula, under Polish sovereignty, became known as Royal Prussia; thus a wedge of predominantly Polish-speaking territory came to be consolidated between German-speaking East Prussia and the German Reich to the west.