Caozhou (Heze)

Caozhou, the area of modern Heze in Shandong province, China, was the birthplace of two major Tang-dynasty Chan masters: Línjì Yìxuán, founder of the Linji (Japanese Rinzai) school, and Zhàozhōu Cóngshěn, the master famed for the 'Mu' (wú) kōan. Both later established their teaching seats elsewhere in northern China.