Huangbo Xiyun

Huángbò Xīyùn (simplified Chinese: 黄檗希运; traditional Chinese: 黄檗希運; Wade–Giles: Huang-po Hsi-yün; lit. 'Xiyun of Mt. Huangbo', Japanese: Ōbaku Kiun) (died 850) was an influential master of Zen Buddhism during the Tang dynasty. Huángbò was a disciple of Baizhang Huaihai (720–840), and the teacher of Linji Yixuan (died 866) (Wade–Giles: Lin-chi I-hsüan; Japanese: Rinzai Gigen).