Yang Chengfu
After his military career he opened a martial arts center in Nanjing, and became vice-president of the National Martial Arts Academy, also known as Central Hall for National Martial Arts ("Zhongyang Guoshuguan"), and now called the Central Guoshu Institute. On his initiative, a Yang-style t'ai chi ch'uan was formalized, with Yang Chengfu as the most important of the contributors.