The Great War of 1409–1411, precipitated by the Lithuanian uprising in the Order controlled Samogitia, included the Battle of Grunwald (Tannenberg), where the Polish and Lithuanian-Rus' armies completely defeated the Teutonic Knights. The offensive that followed lost its impact with the ineffective siege of Malbork (Marienburg). The failure to take the fortress and eliminate the Teutonic (later Prussian) state had for Poland dire historic consequences in the 18th, 19th and 20th centuries. The Peace of Thorn (1411) had given Poland and Lithuania rather modest territorial adjustments, including Samogitia. Afterwards there were negotiations and peace deals that didn't hold, more military campaigns and arbitrations. One attempted, unresolved arbitration took place at the Council of Constance.