フィンランド大公
From 1809 to 1917 the Emperor of Russia was also the Grand Duke of Finland, which he held as an autonomous state. Before the Russian conquest Finland had been held by the Kings of Sweden, first as a royal duchy, since 1581 with the King assuming the secondary title Grand Prince of Finland (Finnish: "Suomen suuriruhtinas", Swedish: "Storfurste av Finland"), also often translated as Grand Duke of Finland.