Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. Yao Chong (650-September 28, 721), born Yao Yuanchong, known 700s-713 by the courtesy name of Yuanzhi, formally Duke Wenxian of Liang, was an official of the Chinese dynasty Tang Dynasty and Wu Zetian''s Zhou Dynasty, serving as chancellor under four sovereigns Wu Zetian, her sons Emperor Zhongzong and Emperor Ruizong, and her grandson Emperor Xuanzong. After his resignation in 716, he still had great influence inside the imperial government, and his opinions often influenced the decisions of Emperor Xuanzong and the succeeding chancellors. Yao Chong was born in 650, during the reign of Emperor Gaozong. His father Yao Shanyi served Emperor Gaozong''s father Emperor Taizong as the commandant at Xi Prefecture. Yao Chong himself started his civil service career serving as an attendant to Emperor Gaozong''s son and crown prince Li Hong, and was known for being able to write quickly. He later served as the food supply officer at Pu Prefecture. He was then moved in his office five times and eventually became Xiaguan Langzhong, a low-level official at the ministry of defense.