Battle of Grunwald [SEP] end time
Battle of Grunwald
The Battle of Grunwald, First Battle of Tannenberg or Battle of Žalgiris was fought on 15 July 1410 during the Polish–Lithuanian–Teutonic War. The alliance of the Crown of the Kingdom of Poland and the Grand Duchy of Lithuania, led respectively by King Władysław II Jagiełło (Jogaila) and Grand Duke Vytautas, decisively defeated the German–Prussian Teutonic Knights, led by Grand Master Ulrich von Jungingen. Most of the Teutonic Knights' leadership were killed or taken prisoner. Although defeated, the Teutonic Knights
in 1410 when King Wladyslaw Jagiello visited it on pilgrimage to the Holy Cross before the Battle of Grunwald. 
The fifteenth and sixteenth centuries were a time of unprecedented prosperity of the castle. It was expanded after the great fire of 1413 and at the end of the fifteenth century, Cardinal  Fryderyk Jagiellończyk added a new east wing with the residential towers. Construction work continued during the sixteenth century by successive bishops Jan Konarski, Piotr Tomicki, Franciszek Krasiński and Piotr Myszkowski, who gradually gave it all the features of the Renaissance