the Prince of Linzi killed Empress Dowager Wei and Princess Anle. Princess Taiping subsequently ordered Emperor Shang to yield the throne to Li Dan, who initially declined, but under persuasion by Li Chengqi and Li Longji, accepted. During Emperor Ruizong's second reign Emperor Ruizong was immediately faced with the issue of whom to make crown prince—as Li Chengqi, as the oldest son overall and the oldest son of his wife, was the appropriate heir under Confucian principles of succession, but Li Longji had been the one whose accomplishments had allowed him to retake the throne. He hesitated. Li Chengqi declined consideration to be crown prince—stating to his father: Li Chengqi wept and begged to yield for several days, and after further persuasion by the chancellor Liu Youqiu—who had been part of Li Longji's coup plans—Emperor Ruizong agreed and created Li Longji crown prince. Li Longji submitted a petition offering to yield to Li Chengqi, but Emperor Ruizong rejected it. Li Chengqi was subsequently made a senior advisor to Li Longji, the prefect of the capital prefecture Yong Prefecture (雍州, roughly modern Xi'an, Shaanxi), and nominal commandant at Yang Prefecture (揚州, roughly modern Yangzhou, Jiangsu). Later that year, he was briefly made Shangshu Pushe (尚書僕射) -- one of the heads of the executive bureau of government (尚書省, Shangshu Sheng), before he was further given the honorific title Sikong (司空), one of the Three Excellencies. Princess Taiping, who had already been powerful both in administrative matters and in court conspiracies during Emperor Zhongzong's reign, and grew especially much more powerful and effective after Emperor Ruizong's return to the throne, had initially acquiesced to Li Longji's ascension as crown prince, believing that given his youth (25 at that time) he would be easy to control. However, she soon found him to be strong-willed and difficult to control, and she secretly considered finding some way to replace him with Li Chengqi or Li Shouli (who also could potentially have a legitimate claim for succession given that he was the senior son of Crown Prince Zhanghuai). In 711, under the suggestion of the chancellors Song Jing and Yao Yuanzhi, who supported Li Longji and wanted to eliminate doubt in people's minds about who would succeed Emperor Ruizong, Emperor Ruizong made Li Chengqi the prefect of Tong Prefecture (同州, roughly modern Weinan, Shaanxi) and Li Shouli the prefect of Bin Prefecture (豳州, roughly modern Xianyang, Shaanxi),