К истории формирования восточного рубежа Тверской земли во второй половине XIII века
On the development of medieval Tver east frontier in the second half of the 13th century

Summary/Abstract: In this article the author analyzes the problem of east frontier of medieval Tver in the second half of the 13th century. Special attention is paid to the discussion on the military campaign of great prince Dmitri Aleksandrovich against Tver and Kashin in 1288. After the campaign of 1288 the eastern frontier of medieval Tver was determined gradually.

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