Treaty of Teusina

The addition of Finnish area in the Treaty of Teusina

The Treaty of Teusina (Finnish: Täyssinän rauha, Russian: Тя́взинский ми́рный догово́р) was concluded by Russian diplomats under the boyar Afanasiy Pushkin and ambassadors of the Swedish king at the village of Tyavzino [ru] (Finnish: Täyssinä, Swedish: Teusina) in Ingria on 18 May 1595 to end the Russo-Swedish War (1590–1595).

The treaty revised provisions of the Truce of Plussa in 1583. It restored all territory ceded to Sweden back to Russia, except for Narva. Russia received Kexholm County with Korela Fortress and most of Ingria, with the towns of Ivangorod, Yama, Koporye. The treaty restored the borders predating the Livonian War. The Swedish-Russian border was delineated from the outstream of the Systerbäck river into the Gulf of Finland, over the lakes Saimaa and Inari, the settlement of Neiden and up to the Barents Sea. Russia had to renounce all claims on Estonia, including Narva, and they had to accept Swedish sovereignty over Estonia.