Treaty of Nöteborg

The Treaty of Nöteborg, also known as the Treaty of Orehovsk, is a conventional name for the peace treaty signed at Oreshek on 12 August 1323. It was the first agreement between Sweden and the Novgorod Republic regulating their border, mostly in the area which is now known as Finland. Three years later, Novgorod signed the Treaty of Novgorod with the Norwegians.

Source: Wikipedia