Siege

Siege of Ryazan (1237)

1237 Mongol invasion of the Principality of Ryazan

The siege of Ryazan happened in Ryazan on December 1237 during the Mongol invasion of Kievan Rus'. Ryazan was the capital of the Principality of Ryazan, and was the first Kievan Rus' city to be besieged by the Mongol invaders under Genghis Khan's grandson Batu Khan.

Fetching the article from Wikipedia…

Text from the Wikipedia article “Siege of Ryazan (1237)”, available under CC BY-SA 4.0.

Meanwhile, elsewhere