Alexander Vygantas was the duke of which city in Lithuania?
Vygantas Vygantas (baptized Alexander; Polish: "Wigunt" ; died June 28, 1392) was Duke of Kernavė. He was one of the sons of Algirdas, Grand Duke of Lithuania (1345–1377), and his second wife Uliana Alexandrovna of Tver.
Battle of Mstislavl The Battle of Mstislavl took place on 4 November 1501 between the forces of the Grand Duchy of Lithuania and the forces of the Grand Duchy of Moscow and Principality of Novgorod-Seversk. The Lithuanian forces were defeated.