Siege of Kaifeng may refer to:
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Jingkang Incident in 1127, a conflict in the Jin–Song wars between the Southern Song and the Jin dynasty
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Mongol siege of Kaifeng
In the Mongol siege of Kaifeng from 1232 to 1233, the Mongol Empire captured Kaifeng, the capital of the Jurchen people, Jurchen-led Jin dynasty (1115–1234), Jin dynasty. The Mongol Empire and the Jin dynasty had Mongol conquest of the Jin dy ...
in 1232, a major battle in the Mongol-Jin War
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