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In page Mongol invasion of Kievan Rus':

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Having burnt down Kolomna and Moscow, the horde laid siege to Vladimir on 4 February 1238. Three days later, the capital of Vladimir-Suzdal was taken and burnt to the ground. The royal family perished in the fire, while the grand prince retreated northward. Crossing the Volga, Vladimir mustered a new army, which was encircled and totally annihilated by the Mongols in the Battle of the Sit River on 4 March.[citation needed]