1514

The Battle of Orsha was fought on 8 September 1514, between the allied forces of the Grand Duchy of Lithuania and the Kingdom of Poland, under the command of Hetman Konstanty Ostrogski; and the army of the Grand Duchy of Moscow under Konyushy Ivan Chelyadnin and Kniaz Mikhail Golitsin. The Battle of Orsha was part of a long series of Muscovite–Lithuanian Wars conducted by Muscovite rulers striving to gather all the former Kievan Rus' lands under their rule. According to Rerum Moscoviticarum Commentarii by Sigismund von Herberstein, the primary source for information on the battle, the much smaller army of Poland–Lithuania (under 30,000 men) defeated a force of 80,000 Muscovite soldiers, capturing their camp and commander. These numbers and proportions have been disputed by modern historians.

• Moscow took the northeast part of Lithuania, including the Upper Oka Principalities, Smolensk

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