ニスタット条約
After his return to Finland in 1812, the Finnish-born Gustaf Mauritz Armfelt became counsellor to the Russian Emperor. Armfelt was instrumental in securing the Grand Duchy as an entity with relatively greater autonomy within the Russian realm, and restoring so-called Old Finland that had been lost to Russia in the Treaty of Nystad (1721) and the Treaty of Åbo (1743).