Война Великого княжества Литовского с Тверским княжеством 1448-1449 гг

ENIn historiography, the relationship between the Grand Duchy of Lithuania and one of the largest principalities of North-Eastern Rus’ – Tver, as a rule, is considered as traditionally friendly and even allied. This article is about an event that challenges this long-established stereotype. The reason for the start of a military conflict that suddenly broke out between the two countries was the capture by Prince Ivan Belsky of the Rzheva Castle, which belonged to Tver at that time. The King of Poland and the Grand Duke of Lithuania, Casimir IV Jagiellon had to enter the war, supporting Belsky, his vassal and cousin. Although the hostilities did not take on a large scale and ended quickly, the conflict itself had a significant impact on relations between the two countries and on the situation in this region of Eastern Europe as a whole. The war ended in 1449 with the return of Rzheva to the Tver principality and the conclusion of a peace treaty, which established equal relations between Wilno and Tver. The paper also examines the role of Moscow both during the mentioned conflict and in the formation of a new system of relations between the three parties in the mid-fifteenth century. Keywords: Grand Duchy of Lithuania, Principality of Tver, military conflict, Rzheva, peace treaty of 1449, Muscovian factor.

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