History of Finland - Russian Grand Duchy

Russian Grand Duchy

During the Finnish War between Sweden and Russia, Finland was again conquered by the armies of Tsar Alexander I. The four Estates of occupied Finland were assembled at the Diet of Porvoo on March 29, 1809 to pledge allegiance to Alexander I of Russia. Following the Swedish defeat in the war and the signing of the Treaty of Fredrikshamn on September 17, 1809, Finland remained a Grand Duchy in the Russian Empire until the end of 1917, with the czar as Grand Duke. Russia assigned Karelia ("Old Finland") to the Grand Duchy in 1812. During the years of Russian rule the degree of autonomy varied. Periods of censorship and political prosecution occurred, particularly in the two last decades of Russian control, but the Finnish peasantry remained free (unlike the Russian serfs) as the old Swedish law remained effective (including the relevant parts from Gustav III's Constitution of 1772). The old four-chamber Diet was re-activated in the 1860s agreeing to supplementary new legislation concerning internal affairs.