Siege of Kozelsk
{'<entity_0>': "Mongol invasion of Rus'", '<entity_1>': 'Siege of Kozelsk', '<entity_2>': '01 March 1238', '<entity_3>': 'Kozelsk', '<entity_4>': 'siege'}
[['Siege of Kozelsk', 'start time', '01 March 1238'], ['Siege of Kozelsk', 'instance of', 'siege'], ['Siege of Kozelsk', 'part of', "Mongol invasion of Rus'"], ['Siege of Kozelsk', 'location', 'Kozelsk']]
The <entity_1> was one of the main events of the Western (Kipchak) March of the Mongols (1236–1242) and the <entity_0> (1237–1240) at the end of the Mongol campaign in North-Eastern Russia (1237–1238). The Mongols laid a <entity_4> in the spring of 1238 and eventually conquered and destroyed the town of <entity_3>, one of the subsidiary princely centers of the Principality of Chernigov. Taking the city of Torzhok on 5 <entity_2> after a two-week <entity_4>, the Mongols continued to Novgorod. The main forces led by Batu Khan passed through Dolgomost 30 km east of Smolensk, then entered the Chernigov Principality on the upper Gums, burned Vshchizh, but then abruptly turned to the northeast, bypassing the Bryansk and Karachev, at the end of <entity_2> went to the <entity_3> on the Zhizdra River.
['siege']