Siege of Kozelsk (Principality of Chernigov vs Mongol Empire) took place in 1238 AD during Mongol invasion of Kievan Rus'.
Wikipedia article on Siege of Kozelsk · Wikidata entry
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Siege of Kozelsk took place in 1238 AD. Principality of Chernigov vs Mongol Empire. Part of Mongol invasion of Kievan Rus'. Explore the interactive map and full Wikipedia details on WarAtlas. Please enable JavaScript to use the full app.