Battle of Grunwald (First Battle of Tannenburg, Battle of Žalgiris), one of Medieval Europe's largest battles during the
Battle of Grunwald (First Battle of Tannenburg, Battle of Žalgiris), one of Medieval Europe's largest battles during the Polish-Lithuanian Teutonic War. Polish King Władysław Jagiełło and Lithuanian Grand Duke Vytautas defeat Teutonic Ulrich von Jungingen.