When was the peace treaty signed based on which Teutonic Knights suffered only minimal territorial losses?
Peace of Thorn (1411): The (First) Peace of Thorn was a peace treaty formally ending the Polish–Lithuanian–Teutonic War between allied Kingdom of Poland and Grand Duchy of Lithuania on one side, and the Teutonic Knights on the other. Peace of Thorn (1411):  It was signed on 1 February 1411 in Thorn (Toruń), one of the southernmost cities of the Monastic State of the Teutonic Knights.
i don't know