The Battle of Vilnius was the first time a foreign power managed to capture a group of cultural, and historic structures on the left bank of what river?
Battle of Vilnius (1655) The Battle of Vilnius, Wilno, or Vilna was an attack by Russian and Cossack forces on Vilnius (Wilno), the capital of the Grand Duchy of Lithuania within the Polish–Lithuanian Commonwealth, that occurred on 8 August 1655 during the Russo-Polish War (1654–67). The Polish–Lithuanian forces under the leadership of hetman Janusz Radziwiłł were defeated by the Russian army of Alexis of Russia. It was the first time that a foreign power managed to capture the Vilnius Castle Complex. The six-year Muscovite occupation that followed resulted in a major depopulation and a decline of the city for many years to come. The defeat was one of the reasons Janusz Radziwiłł and several other Lithuanian magnates surrendered the Grand Duchy to Sweden at the Union of Kėdainiai.
Zaporizhian Sich The Zaporozhian Sich (, "Zaporoz'ka Sich"; Polish: "Sicz Zaporoska" ; Russian: Запорожская Сечь ) was a semi-autonomous polity of Cossacks in the 16th to 18th centuries, centred in the region around today's Kakhovka Reservoir spanning the lower Dnieper river in Ukraine. In different periods the area came under the sovereignty of the Polish-Lithuanian Commonwealth, the Ottoman Empire, the Tsardom of Russia, and the Russian Empire. In 1775, shortly after Russia annexed the territories ceded to it by the Ottoman Empire under the Treaty of Küçük Kaynarca (1774), Catherine the Great disbanded the Sich and incorporated its territory into the Russian province of Novorossiya.