Po-mi (born 810 in Gangneung; died 894) founded and lived at Gulsansa for over forty years and turned down all offers by three separate Shilla kings to be the national preceptor, and after his death he became the royal tutor deity. His students included Gaecheong (854 - 930) and Haengjeok (832 - 916). He was given the title T’onghyo posthumously.