Yuanwu Keqin

Yuanwu Keqin (Chinese: 圜悟克勤; Wade–Giles: Yuan-wu K'e-ch'in; Japanese: Engo Kokugon) (1063–1135) was a Chinese Chán Buddhist monk who compiled the Blue Cliff Record (Wade-Giles: Pi-yen Lu; Japanese: Hekiganroku).

Read more about Yuanwu Keqin:  Biography, Blue Cliff Record