aostosopimus
The Aostosopimus, also known as the Åostosopimus in Finnish, refers to a historical agreement signed in Åbo (Turku), Finland, on May 17, 1809. This treaty marked a significant shift in Finland’s political and legal status following the Finnish War (1808–1809), a conflict between Russia and Sweden. The war resulted in Sweden’s defeat, and under the terms of the treaty, Finland was ceded to the Russian Empire by Sweden.
The Aostosopimus established Finland as an autonomous Grand Duchy within the Russian Empire, preserving many of
The agreement aimed to stabilize Finland by integrating it into the Russian Empire while maintaining its distinct