| Geolsa Biu | ||||||||
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Geolsa Biu was a 7th century military leader of Baishan Mohe ancestry. Geolsa Biu took an active part in Balhae's effort for autonomy against the Tang Dynasty. Geolsa Biu's died in the Battle of Cheonmun-ryeong, in which Balhae achieved victory and declared autonomy.