Zhang Tianran (張天然) (8 August 1889 – 29 September 1947) was the eighteenth patriarch as well as the founder of the I-Kuan Tao religious sect. He is usually referred to as the Father of I-Kuan Tao, or as Shi Zun (師尊), meaning the Honored Teacher.
Read more about Zhang Tianran: Early Life, Leadership in I-Kuan Tao, Death