Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. Pages: 46. Chapters: Li Chengqi, Wu Sansi, Li Jiancheng, Li Yuanji, Wu Chengsi, Li Chengqian, Li Tai, Li Chongfu, Li Xian, Li Xiaogong, Li Lin, Li Hong, Li Daozong, Li Chongrun, Li Zaiyi, Li Zi, Li Ke, Li Zhen, Li Chongjun, Li Ying, Wu Youji, Li Sujie, Li Tan, Li Zhong, Li Yong, Li Cong, Li Cou, Li Rong, Li Chengmei, Li Wu, Li Ning, Li Mao, Wu Youning, Li Pu. Excerpt: Li Chengqi (Chinese: ) (679 - January 5, 742), known as Wu Chengqi (Chinese: ) during the reign of his grandmother Wu Zetian and as Li Xian (Chinese: ) after 716, formally Emperor Rang (Chinese: , literally, "the emperor who yielded"), was an imperial prince of the Chinese dynasty Tang Dynasty who served as crown prince during the first reign of his father Emperor Ruizong who yielded that position to his younger brother Li Longji (Emperor Xuanzong) during Emperor Ruizong's second reign. According to historical records, he was close to his younger brother Li Longji (later Emperor Xuanzong) and was never ambitious. Despite his never having been emperor, he was posthumously honored as an emperor by Emperor Xuanzong. Li Chengqi was born in 679, during the reign of his grandfather Emperor Gaozong. He was the oldest son of Li Dan, who was then the Prince of Yu, and Li Dan's wife Princess Liu. Sometime after his birth, he was created the Prince of Yongping. Emperor Gaozong died in 683 and was succeeded by Li Chengqi's uncle Li Zhe the Crown Prince (as Emperor Zhongzong), but actual power was in the hands of Li Chengqi's grandmother Empress Wu (later known as Wu Zetian), as empress dowager and regent. In 684, after Emperor Zhongzong showed signs of independence, she deposed him and replaced him with Li Chengqi's father Li Dan (as Emperor Ruizong), but thereafter held onto power even more firmly. After Emperor Ruizong's ascension, Li Chengqi was created crown prince, and his mother...