Tang Dynasty. Emperor Ruizong was reduced to crown prince, while Li Chengqi was reduced to the title of "imperial grandson" (皇孫). For a while, Li Chengqi and his younger brothers were allowed to establish residences outside the palace, and Li Chengqi was given a staff. As Wu Zetian changed Li Dan's surname to Wu, Li Chengqi also carried the surname of Wu during Wu Zetian's reign. Things appeared to change in 693, however, after Li Chengqi's mother Crown Princess Liu and Li Dan's concubine Consort Dou were killed by Wu Zetian based on false accusations by the lady in waiting Wei Tuan'er (韋團兒). While Wu Zetian soon discovered that Wei Tuan'er's accusations were false (and executed her), Li Chengqi and his younger brothers were still reduced in their titles and were, along with their cousins Li Guangshun (李光順) the Prince of Yifeng, Li Shouli the Prince of Yong, and Li Shouyi (李守義) the Prince of Yong'an (the sons of their uncle Li Xian (note different character), whom Empress Dowager Wu had forced to commit suicide in 684), held under house arrest in the palace. (In Li Chengqi's case, his title was reduced to Prince of Shouchun.) During Emperor Zhongzong's second reign and Emperor Shang's reign Wu Zetian was overthrown in 705 in a coup led by the officials Zhang Jianzhi, Cui Xuanwei, Jing Hui, Huan Yanfan, and Yuan Shuji. The former Emperor Zhongzong, whom Wu Zetian had recalled from exile in 698 and to whom Li Dan had subsequently yielded the position of heir apparent, was restored to the throne. He gave Li Chengqi's father Li Dan great honors and created Li Chengqi the greater title of Prince of Cai, but Li Chengqi declined this greater title and thereafter continued to be Prince of Shouchun. Emperor Zhongzong died suddenly in 710—a death that traditional historians believed to be a murder carried out by his powerful wife Empress Wei and daughter Li Guo'er the Princess Anle. Empress Wei made Emperor Zhongzong's son by a concubine, Li Chongmao the Prince of Wen, emperor (as Emperor Shang), but took power as empress dowager, and as part of a number of honors that she conferred on various persons to try to pacify them, Li Chengqi was created the greater title of Prince of Song. Less than a month later, however, a coup led by Li Chengqi's aunt Princess Taiping and younger brother Li Longji