The
Wendish Crusade (
German:
Wendenkreuzzug) was a military campaign in 1147, one of the
Northern Crusades and a part of the
Second Crusade, led primarily by the
Kingdom of Germany within the
Holy Roman Empire and directed against the
Polabian Slavs (or "
Wends").
By the early
12th century, the German archbishoprics of
Bremen and
Magdeburg sought the conversion to
Christianity of neighboring pagan
West Slavs through peaceful means. During the preparation of the Second Crusade to the
Holy Land, however, a papal bull was issued supporting a crusade against these
Slavs. The
Slavic leader
Niklot preemptively invaded
Wagria in June 1147, leading to the march of the crusaders later that summer. They achieved an ostensible baptism of Slavs at
Dobin but were repulsed from
Demmin. Another crusading army marched on the already
Christian city of
Szczecin (
Stettin), whereupon the crusaders dispersed upon arrival.
The Christian army, composed primarily of
Saxons and
Danes, forced tribute from the pagan Slavs and affirmed German control of Wagria and Polabia, but failed to convert the bulk of the population immediately.
The
Ottonian dynasty supported eastward expansion of the Holy Roman Empire towards Wendish (
West Slavic) lands during the
10th century. The campaigns of
King Henry the Fowler and
Emperor Otto the
Great led to the introduction of burgwards to protect German conquests in the lands of the
Sorbs.
Otto's lieutenants, Margraves
Gero and
Hermann Billung, advanced eastward and northward respectively to claim tribute from conquered Slavs. Bishoprics were established at
Meissen,
Brandenburg, Havelberg, and
Oldenburg to administer the territory. A great Slavic rebellion in 983 reversed the initial German gains, however. While the burgwards allowed the Saxons to retain control of Meissen, they lost Brandenburg and Havelberg. The
Elbe River thus became the eastern limit of German-Roman control.
By the early 12th century, the Archbishoprics of Bremen, Magdeburg and
Gniezno sought the conversion of the pagan Slavs to Christianity through peaceful means: notable missionaries included
Vicelin,
Norbert of Xanten, and
Otto of Bamberg (sent to
Pomerania by
Bolesław III Wrymouth of
Poland). Lacking support from the
Salian dynasty of the Holy Roman Empire, secular
Saxon princes seeking Slavic territory found themselves in a military stalemate with their adversaries. Christians, especially Saxons from
Holstein, and pagans raided each other across the
Limes Saxonicus, usually for tribute.
From 1140-43
Holsatian nobles advanced into Wagria to permanently settle in the lands of the pagan Wagri.
Count Adolf II of Holstein and
Henry of Badewide took control of Polabian settlements which would later become
Lübeck and Ratzeburg; Vicelin was subsequently installed as bishop at Oldenburg.
Adolf sought
peace with the chief of the Obodrite confederacy, Niklot, and encouraged
German colonization and missionary activity in Wagria.
The fall of
Edessa in 1144 shocked Christendom, causing
Pope Eugenius III and
St. Bernard of Clairvaux to preach a Second Crusade to reinforce Outremer. While many south
Germans volunteered to crusade in the
Middle East, the north German Saxons were reluctant. They told
Bernard of their desire to campaign against the Slavs at a
Reichstag meeting in
Frankfurt on 13 March 1147. Approving of the Saxons' plan, pope
Eugenius issued a papal bull known as the
Divina dispensatione on 13 April; there was to be no
difference between the spiritual rewards of the different crusaders. Those who volunteered to crusade against the Slavs were primarily Danes, Saxons, and
Poles, although there were also some Bohemians.
The German monarchy took no part in the crusade, which was led by Saxon families such as the
Ascanians,
Wettin, and Schauenburgers.
Papal legate Anselm of Havelberg was placed in overall command.
Upset at Adolf's participation in the crusade, Niklot preemptively invaded Wagria in June 1147, leading to the march of the crusaders in late summer 1147. After expelling the Obodrites from his territory, Adolf signed a peace treaty with Niklot. The remaining Christian crusaders targeted the Obodrite fort Dobin and the Liutizian fort Demmin.
- published: 21 Jun 2015
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