In 1323 Lithuanian Grand Duke Gediminas made this city his capital
[DOC] [TLE] Gediminas  King of Lithuania & Russians - VilNews [PAR] At first he moved the capital city to the newly built city of Trakai, but in 1323 ... 
ruled Vilnius after the death of his father and was formally Grand Duke of 
Lithuania... [DOC] [TLE] The amazing Italian influence on Lithuania since 1323 - VilNews [PAR] roots in what is now Vilnius city, a Franciscan monastery was already in place  
at ...