Ostsiedlung


Ostsiedlung is the term for the early medieval and high medieval migration of Germanic peoples and Germanization of the areas populated by Slavic, Baltic and Uralic peoples; the most settled area is sometimes known today as Germania Slavica. Germanization efforts included eastern parts of Francia, East Francia, and the Holy Roman Empire and beyond; and the consequences for settlement development and social structures in the areas of settlement. Other regions were also settled, though not as heavily. The Ostsiedlung encompassed multiple modern and historical regions, primarily Germany east of the Saale and Elbe rivers, the states of Lower Austria and Styria in Austria, Poland and the Czech Republic, but also in other parts of Central and Eastern Europe.
The majority of Ostsiedlung settlers settled individually at various stages. Many settlers were encouraged and invited by the local princes and regional lords, who sometimes even expelled previously settled people to make room for German settlers.
Smaller groups of migrants first moved to the east during the early Middle Ages. Larger treks of settlers, which included scholars, monks, missionaries, craftsmen and artisans, often invited, in numbers unverifiable, first moved eastwards during the mid-12th century. The military territorial conquests and punitive expeditions of the Ottonian and Salian emperors during the 11th and 12th centuries do not form part of the Ostsiedlung, as these actions did not result in noteworthy settlement establishment east of the Elbe and Saale rivers. The Ostsiedlung is considered to have been a purely Medieval event as it ended in the beginning of the 14th century. The legal, cultural, linguistic, religious and economic changes caused by the movement had a profound influence on the history of Eastern Central Europe between the Baltic Sea and the Carpathians until the 20th century.
In the 20th century, accounts of the Ostsiedlung were heavily exploited by German nationalists to press the territorial claims of Germany and to demonstrate supposed German superiority over non-Germanic peoples, whose cultural, urban and scientific achievements in that era were undermined, rejected, or presented as German. After World War I, the fact that Germany and Austria lost part of their territories in the East appeared as a counterpoint to Ostsiedlung because some of the Germans in the East became foreign citizens when their homes were no longer part of Germany and Austria. The Germans in the East outside Germany and Austria were partially forced to leave and the regions that Germany and Austria lost in the East were dominated by non-German peoples, so the German loss here was not as severe as after World War II.
In and after World War II, Germans were driven out and deported to Germany from the East and their language and culture were lost in most areas in which German people had settled during the Ostsiedlung; except part of Eastern Austria and especially Eastern Germany.

Early medieval Central Europe

During the 4th and 5th centuries, in what is known as the Migration Period, Germanic peoples seized control of the decaying Western Roman Empire in the South and established new kingdoms within it. Meanwhile, formerly Germanic areas in Eastern Europe and present-day Eastern Germany, were settled by Slavs.

Under Carolingian rule

, ruler of the Carolingian Empire of Francia, which was founded by Franks, under whom most of Western and Central continental Europe had been united during the 8th and 9th centuries, created numerous border territories, so called marches, where a substantial portion of the Ostsiedlung would later take place. The territories :
This was the earliest recorded and planned "eastern policy" under Charlemagne, who wanted to protect the eastern border of the Frankish Empire, and also wanted to solidify his position in the east by declaring war on the Obotrites and Wilzes in the North, as well as on the Sorbs and Czech tribal princes. However, since the goal wasn't to establish an ethnic and linguistic boundary between the Slavs and Germanic tribes, Slavic settlement continued in Thuringia and Northern Bavaria, with individual Slavs even making it to the Rhine Basin.
The tribes that populated these marches were generally unreliable allies of the Empire, and successor kings led numerous, yet not always successful, military campaigns to maintain their authority.
In 843, the Carolingian Empire was partitioned into three independent kingdoms as a result of dissent among Charlemagne's three grandsons over the continuation of the custom of partible inheritance or the introduction of primogeniture.

East Francia and Holy Roman Empire

inherited the eastern territories, East Francia, that included all lands east of the Rhine river and to the north of Italy, which roughly corresponded with the territories of the German stem duchies, that formed a federation under the first king Henry the Fowler. The Slavs living within the reach of East Francia, collectively called Wends or "Elbe Slavs", seldom formed larger political entities. They rather constituted various small tribes, settling as far west as to a line from the Eastern Alps and Bohemia to the Saale and Elbe rivers. As the East Frankish kingdom expanded, various Wendish tribes, that were conquered or allied with the Eastern Franks, such as the Obotrites, aided the Franks in defeating the West Germanic Saxons. The Carolingian tradition of setting up marches at the periphery of the empire would be continued by the East Frankish and Holy Roman Empire's kings during the 11th and 12th centuries.
Under the rule of King Louis the German and Arnulf of Carinthia, the first groups of civilian Catholic settlers were led by Franks and Bavarii to the lands of Pannonia.
In a series of punitive actions, large territories in the northeast between the Elbe, Saale, Naab rivers in the west and the Oder, Bober, Kwisa and Vltava rivers in the east were conquered, and border marches were established in these areas. Fortifications were occupied and new castles built, reinforced by military units to exert military control and collect tributes. Christianization was limited to the establishment of mission dioceses such as Lübeck, Brandenburg or Havelberg. The development of a parish church system only took place after the settlement of German colonists, beginning in the 2nd half of the 12th century. Control over areas that had already been conquered was repeatedly lost. The Slavic revolt of 983 and an uprising of the Obotrites in 1066 had particularly serious consequences.

Slavic revolt of 983

In 983, the Polabian Slavs in the Billung and Northern Marches, stretching from the Elbe river to the Baltic Sea succeeded in a rebellion against the political rule and Christian mission of the recently established Holy Roman Empire. In spite of their new-won independence, the Obotrites, Rani, Liutizian and Hevelli tribes were soon faced with internal struggles and warfare as well as raids from the newly constituted and expanding Piast dynasty state from the east, Denmark from the north and the Empire from the west, eager to reestablish her marches. The area remained under rule of the Polabian tribes and uncolonized and unchristianized into the 12th century.

Eastern marches of East Francia and Holy Roman Empire

The territories :
The Sorbian March east of the Saale river was established in the 9th century. King Otto I designated a larger area – the Saxon Eastern March – in 937, that encompassed the territory between the Elbe, the Oder and the Peene rivers. Governed by Margrave Gero, it is also referred to as Marca Geronis. After Gero's death in 965, the march was divided in smaller sectors: Northern March, Lusatian March, Margraviate of Meissen, and March of Zeitz. The march was populated by various West Slavic tribes, the largest being Polabian Slavs tribes in the north and Sorbian tribes in the south.
The Margravate of Meissen and Transylvania were populated by German settlers, beginning in the 12th century. From the end of the 12th century onwards, monasteries and cities were established in Pomerania, Brandenburg, Silesia, Bohemia, Moravia and eastern Austria. In the Baltics, the Teutonic Order founded a crusader state in the beginning of the 13th century.

Northeastern Germany and Holstein

Background

A call for a crusade against the Wends in 1108, probably coming from a Flemish clerk in the circles of the archbishop of Magdeburg, which included the prospect of profitable land gains for new settlers, had no noticeable effect and resulted in neither a military campaign nor a movement of settlers into the area.
Although the first settlers had already arrived in 1124, being mostly of Flemish and Dutch origin, they settled south of the Eider river, followed by the conquest of the land of the Wagri in 1139, the founding of Lübeck in 1143 and the call by Count Adolf II of Schauenburg to settle in Eastern Holstein, and Pomerania in the same year.
Weakened by ongoing internal conflicts and constant warfare, the independent Wendish territories finally lost the capacity to provide effective military resistance. From 1119 to 1123, Pomerania invaded and subdued the northeastern parts of the Lutici lands. According to Kantzow, in 1124 and 1128, Wartislaw I, Duke of Pomerania, at that time a vassal of Poland, invited bishop Otto of Bamberg to Christianize the Pomeranians and Liutizians of his duchy. In 1147, as a campaign of the Northern Crusades, the Wendish Crusade was mounted in the Duchy of Saxony to retake the marches lost in 983. The crusaders also headed for Pomeranian Demmin and Szczecin, despite these areas having already been successfully Christianized. The Crusade caused widespread devastation and slaughter.