​ÅBO, PEACE OF, a treaty concluded Aug. 17, 1743, between Russia and Sweden, by which Russia retained a part of Finland and restored to Sweden the remainder on condition that the latter power should elect the Prince of Holstein-Gottorp successor to the throne. On Aug. 30, 1812, the Emperor Alexander I., of Russia, and the Crown Prince Karl Johann, of Sweden, confirmed the second treaty between the two countries already signed March 24th, containing a secret article of mutual protection. It treated of Napoleon and the subjugation of Norway.