Qin Kai (simplified Chinese: 秦开; traditional Chinese: 秦開), was a general of the Kingdom of Yan during the Warring States period of China.
He was at one time sent by Yan to Donghu as a hostage.
After returning to Yan, around 300 BC, he defeated the Donghu and conquered Liaodong Peninsula, wresting it from Gojoseon.
Qin Kai was the grandfather of Qin Wuyang.
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