Son Duk-sung

Son Duk-sung (; June 17, 1922 – March 29, 2011) was a martial artist, Grand Master, 9th degree black belt, co-founder of the Korean martial art of Tae Kwon Do, successor of Lee Won-kuk and leader of the Chung Do Kwan school (1950–1959). He was also the chief Instructor of the South Korean Army and the Eighth U.S. Army, founder and president of the World Tae Kwon Do Association and author of the books "Korean Karate, the Art of Tae Kwon Do” and “Black Belt Korean Karate ". Provided by Wikipedia