events
The first battle between the forces of Švitrigaila and Sigismund Kęstutaitis is fought near the town of Oszmiana (Ashmyany), launching the most active phase of the Lithuanian Civil War.
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Švitrigaila
Grand Duke of Lithuania from 1430 to 1432
Švitrigaila was the Grand Duke of Lithuania from 1430 to 1432. He spent most of his life in largely unsuccessful dynastic struggles against his cousins Vytautas and Sigismund Kęstutaitis.Source: Wikipedia (CC BY-SA)
Sigismund Kęstutaitis
Grand Duke of Lithuania from 1432 to 1440
Sigismund Kęstutaitis was Grand Duke of Lithuania from 1432 to 1440. Sigismund was his baptismal name, while his pagan Lithuanian birth name is unknown. He was the son of Grand Duke Kęstutis and his wife Birutė.Source: Wikipedia (CC BY-SA)
Ashmyany
Town in Grodno Region, Belarus
Ashmyany or Oshmyany is a city in Grodno Region, Belarus. It is located 50 kilometres (31 mi) from Vilnius in Lithuania, and serves as the administrative center of Ashmyany District. The river Ashmyanka passes through the city. As of 2025, it has a population of 16,804.Source: Wikipedia (CC BY-SA)
Lithuanian Civil War (1432–1438)
War of succession in medieval Lithuania
The Lithuanian Civil War of 1432–1438 was a war of succession to the throne of the Grand Duchy of Lithuania, after Vytautas the Great died in 1430 without leaving an heir. The war was fought on the one side by Švitrigaila, allied with the Teutonic Knights, and on the other by…Source: Wikipedia (CC BY-SA)
December 9
Day of the year
December 9 is the 343rd day of the year in the Gregorian calendar; 22 days remain until the end of the year.Source: Wikipedia (CC BY-SA)