Duchy of Lithuania Duchy of Lithuania Duchy of Lithuania (; ) was a state-territorial formation of ethnic Lithuanians, that existed from the 13th century until 1413. Most of the time it was a constituent part and a nucleus of the Grand Duchy of Lithuania. Other alternative names of the territorial formation, used in different periods, were Aukštaitija or Land of Lithuania (13th century), Duchy of Vilnius (14th – early 15th centuries), Lithuania Propria or simply Lithuania (in a narrow sense). The formation emerged in the central and eastern part of the present-day Lithuania, known as Aukštaitija, as the Lietuva Land (). It is
1922 Republic of Central Lithuania general election a mere fraction of the total population (about 2–3% of the population, according to Russian 1897 and German 1916 censuses). The Lithuanians nonetheless believed that their historical claim to the city (former capital of the Grand Duchy of Lithuania) had precedence and refused to recognize any Polish claims to the city and the surrounding area. The League of Nations mediated the dispute and strongly advocated a plebiscite where the local population would vote to be incorporated either into Poland or Lithuania. However, neither Poland nor Lithuania wanted the vote. Poland had control of the territory and saw no reason to