After the Polish–Lithuanian–Teutonic War of 1410–1411 not all issues between the Grand Duchy of Lithuania and Teutonic Knights were settled. The most contentious matter was the border between Samogitia and Prussia. Grand Duke of LithuaniaVytautas the Great demanded the entire right bank of the Neman River including the town of Memel. The Knights demanded that after deaths of Vytautas and Jogaila, King of Poland, Samogitia would pass to them. Sigismund, Holy Roman Emperor, agreed to mediate the dispute and appointed Benedict Makrai to hear the arguments. On 3 May 1413, Benedict made the decision and recognized the right bank of the Neman River, including Klaipėda, to Lithuania. The Knights refused to accept this decision and Teutonic Grand MasterHeinrich von Plauen ordered Teutonic armies into northern Poland. The army, commanded by Michael Küchmeister von Sternberg, returned into Prussia after just 16 days of campaign. The knights did not believe that the Order, still recovering from the defeat in the Battle of Grunwald in 1410, was ready for another war with Poland. Küchmeister deposed von Plauen and became the Grand Master. He attempted to reopen the negotiations with Poland in May 1414. As King Jogaila demanded to reinstate von Plauen and refused any attempts at a compromise, the talks broke down.
The war
In the summer of 1414, armies of King Jogaila and Grand Duke Vytautas invaded Prussia, ruled by the monastic state. They advanced through Osterode into Warmia, plundering villages and burning crops. The Teutonic Knights chose to concentrate their defensive efforts in Culmerland. The Knights remained in their castles and refused an open battle after realizing the superiority of Polish and Lithuanian forces in a potential pitched battle. Küchmeister deployed scorched earth tactics hoping to deprive invading armies of food and supplies. This tactic later resulted in a famine and plague in the region. The invaders themselves were not able or willing to seek a decisive military victory via lengthy sieges of Teutonic castles. Papal legate William of Lausanne proposed resolving the conflict through diplomacy and a two-year truce was signed in Strasburg in October. Jogaila and Vytautas agreed to present their case to the Council of Constance. However, the territorial disputes were not resolved until the Treaty of Melno in 1422.
