Chai Jin
When Liangshan Marsh is first mentioned in "Water Margin", it is occupied by bandits led by Wang Lun, Du Qian and Song Wan. Before coming to this water-locked place, Wang and Du apparently had been drifting around together and were once sheltered by the nobleman Chai Jin. After setting up a stronghold at Liangshan, they expand their band to about 800 men. Wang Lun takes the place of chief, with Du Qian as his top assistant. Song Wan subsequently joins them and takes the third position.