Yun Gwan (윤관, 尹瓘; 12 July 1040 – 15 June 1111In Lunar Calendar, Yun was born on 1 June 1040 and died on 8 May 1111) was a Korean military general of Goryeo who was known for training the Byeolmuban and leading it to victory against the Jurchen tribes.
