Seungsahn
Seungsahn Haengwon (Korean: 숭산행원대선사; Hanja: 崇山行願大禪師; RR: Sungsan Haengwon Daeseonsa, August 1, 1927 – November 30, 2004), born Duk-In Lee, was a Korean Seon master of the Jogye Order and founder of the international Kwan Um School of Zen. He was the seventy-eighth Patriarch in his lineage.