Vyborg Governorate
Vyborg Governorate was an administrative-territorial unit (guberniya) of the Russian Empire, established in 1744 from territories ceded by Sweden to Russia in two successive conflicts: the Great Northern War (1700–1721), concluded by the Treaty of Nystad, and the Russo-Swedish War (1741–1743), concluded by the Treaty of Åbo. These areas were initially attached to the Saint Petersburg Governorate before being reorganized as a separate governorate with its capital in Vyborg (Viipuri).