 At the same time the originally intended reconquest of Jerusalem was abandoned, when the armistice with the Ayyubid dynasty was renewed for another six years.The German Princes later on concentrated on their land acquisitions in the territories of the Polabian Slavs initiated by the Wendish Crusade of 1147.The Teutonic Order, established during the Siege of Acre in 1190 and elevated to a chivalric order during the German Crusade in March 1198, played an important role in the German eastward expansion to Prussia and the adjacent Baltic region in the 13th century.