Siege of Ryazan
Ryazan, capital of the Principality of Ryazan, was the first Russian city to be besieged by the Mongol invaders under Batu Khan. Prelude. In the autumn of 1237 the Mongol Horde led by Batu Khan invaded the Rus' principality of Ryazan. The Prince of Ryazan, Yuriy Igorevich, asked Yuriy Vsevolodovich, the prince of Vladimir, for help, but did not receive any. Siege. The Mongols defeated the vanguard of the Ryazan army at the Voronezh River and on December 16, 1237 besieged the capital of the principality (this site is now known as Old Ryazan, "Staraya Ryazan", and  is situated some 50 km from the modern city of Ryazan). The townspeople repelled the first Mongol attacks. The Mongols then used catapults to destroy the city's fortifications. On December 21, Batu Khan's troops stormed the walls, plundered Ryazan, killed Prince Yuriy and his wife, executed nearly all of the city's inhabitants, and burned the city to the ground. "But God saved the Bishop, for he had departed the same moment when the troops invested the town." Casualties. The population of Ryazan in the XIII century is hard to estimate. Archaeological excavations on the site of Old  Ryazan in 1915 and 1979 uncovered 97 severed heads on the site of the former church, and 143 bodies in several mass graves, all of whom met violent deaths during the sack of the city. Aftermath. The writer of the Rus chronicle described the aftermath of the battle with the words ""There was none left to groan and cry"". The city of Old Ryazan was completely destroyed and was never rebuilt. After the destruction of Ryazan, Batu Khan's horde pushed on into the principality of Vladimir-Suzdal.