The Peace of Thorn or Toruń of 1466, also known as the Second Peace of Thorn or Toruń (; ), was a peace treaty signed in the Hanseatic city of Thorn (Toruń) on 19 October 1466 between the Polish king Casimir IV Jagiellon and the Teutonic Knights, which ended the Thirteen Years' War, the longest of the Polish–Teutonic Wars.

The treaty was signed in the Artus Court, and afterward a mass was held in the Gothic Franciscan Church of the Assumption of the Blessed Virgin Mary to celebrate the peace treaty.

Background

The treaty concluded the Thirteen Years' War which had begun in February 1454 with the revolt of the Prussian Confederation, led by the cities of Danzig (Gdańsk), Elbing (Elbląg), Kulm (Chełmno) and Toruń, and the Prussian gentry against the rule of the Teutonic Knights in the Monastic State, in order to join the Kingdom of Poland. Both belligerents had exhausted their financial resources and therefore pursued a negotiated peace settlement.

Both sides agreed to seek confirmation from Pope Paul II and Holy Roman Emperor Frederick III, but the Polish side stressed (and the Teutonic side agreed) that this confirmation would not be needed for validation of the treaty. The peace talks were held in Nieszawa (present-day Mała Nieszawka) from 23 September 1466, and in the final stages moved to Toruń.

Terms

thumb|Peace treaty

In the treaty, the Teutonic Order renounced any claims to the territories of Gdańsk/Eastern Pomerania and Chełmno Land, which were reintegrated with Poland, and the region of Elbing (Elbląg) and Marienburg (Malbork), and the Bishopric of Warmia, which were also recognized as part of Poland. The Roman Catholic Diocese of Chełmno became a suffragan of the Archdiocese of Gniezno.

From now on, every Grand Master of the Teutonic Order was obliged to swear an oath of allegiance to the reigning Polish king within six months of taking office, and any new territorial acquisitions by the Teutonic Order, also outside Prussia, would also be incorporated into Poland. The Grand Master became a prince and counselor of the Polish king and the Kingdom of Poland. Poles were to be admitted to the Teutonic Order. The Teutonic Knights were obliged to help Poland in the event of war.