The Wendish Crusade was a military campaign in 1147, one of the Northern Crusades, led primarily by the Kingdom of Germany within the Holy Roman Empire and directed against the Polabian Slavs. The Wends were made up of the Slavic tribes of Abrotrites, Rani, Liutizians, Wagarians, and Pomeranians who lived east of the River Elbe in present-day northeast Germany and Poland.
The Capture of the Wends
Henry's duchies Saxony and Bavaria
The Northern Crusades or Baltic Crusades were Christianization campaigns undertaken by Catholic Christian military orders and kingdoms, primarily against the pagan Baltic, Finnic and West Slavic peoples around the southern and eastern shores of the Baltic Sea, and also against Orthodox Christian East Slavs.
Battle on the Ice on Lake Peipus during the Northern Crusades, miniature from the Illustrated Chronicle of Ivan the Terrible (16th century)
Ruins of the castle in Sigulda
Kuressaare Castle, Estonia, constructed by the Teutonic Order
Tērvete castle hill in 2010.