Thirteen Years' War Concludes at Second Treaty of Thorn

The Second Treaty of Thorn marked the conclusion of the Thirteen Years' War between the Kingdom of Poland and the Teutonic Order. Following extensive conflict starting in 1454, the treaty was signed in Thorn, Poland, establishing peace and significant territorial changes. It concluded nearly 13 years of military engagement, culminating in the loss of substantial territories for the Teutonic Knights. The treaty reaffirmed Polish sovereignty over Pomerelia and established the status of the Teutonic Order as a vassal state under the Kingdom of Poland, hence altering the balance of power in the region.