 Complete the following phrase:  The Teutonic Knightly order was founded in the late 12th century after the crusades in the Middle East most likely the Third Crusade. Of German origin, Germany initially contributed a large army of heavy infantry and cavalry under Frederick Barbarossa. After the aging emperors mysterious death and supposed pickling, a few of these knights made it to the Holy Land and established themselves, where they controlled the polls of the ports in the parts of the Levant controlled by the Crusaders. Most of the action seen by these Knights, however, were directed against Prussia and the PolishLithuanian commonwealth. The Teutonic Knights declined in importance after a crushing defeat by the PolishLithuanian forces in the 1410 