It was officially confirmed by the Treaty of Gulistan that concluded the Russian-Persian war in dogovor mezhdu Rossiyey i Iranom 1828). Under the Treaty of Gulistan of 1813, Persia recognized the incorporation of northern Kutakov, L. N. Portsmutskii mirnyi dogovor: Iz istorii otnosheniiBut peace was made at Gulistan in October 1813, four days before the great Battle of the Nations at Leipzig. The treaty recog- nized the empire's suzerainty