Lithuania Minor (; ; ; ), or Prussian Lithuania (; , ), is a historical ethnographic region of Prussia, later East Prussia in Germany, where Prussian Lithuanians (or Lietuvininkai) lived. Lithuania Minor encompassed the northernmost part of this province and got its name due to the territory's substantial Lithuanian-speaking population. Prior to the invasion of the Teutonic Knights in the 13th century, the main part of the territory later known as Lithuania Minor was inhabited by the tribes of Skalvians and Nadruvians. The land depopulated during the incessant war between Lithuania and the Teutonic Order. The war ended with the Treaty of Melno and the land was resettled by Lithuanian newcomers, returning refugees, and the remaining indigenous Baltic peoples; the term Lithuania Minor appeared for the first time between 1517 and 1526.