Emperor Ai of Tang
The new Later Liang emperor created Li Chu the Prince of Jiyin and moved him from Luoyang to Cao Prefecture (曹州, in modern Heze, Shandong), and put his mansion under heavy guard, with a fence of thorns surrounding it. In 908, he had Li Chu poisoned to death, and gave Li Chu the posthumous name of "Ai" (哀, "lamentable"). In 928, by which time Li Keyong's adoptive son Li Siyuan was ruling as the emperor of Jin's successor state Later Tang (as Emperor Mingzong), which claimed to be the legitimate continuation of Tang Dynasty and which had earlier destroyed Later Liang, Emperor Mingzong's officials suggested that a temple be built to honor Emperor Ai. Emperor Mingzong had such a temple built at Cao Prefecture. In 929, Emperor Mingzong's officials further suggested giving Emperor Ai a more proper (i.e., more Tang-traditional) posthumous name of Emperor Zhaoxuan Guanglie Xiao, with a temple name of Jingzong, but they also pointed out that since Emperor Ai's temple was not among the imperial ancestral temples, a temple name was not proper. Therefore, only the new posthumous name was adopted, and the temple name was not. Traditional histories thus referred to him mostly as Emperor Ai but also at times as Emperor Zhaoxuan.No family recorded in official histories; Song dynasty general Li Gang was claimed to be a descendant through a son named Li Xizhao (李熙照)
Tang campaign against the Eastern Turks
The Eastern Turkic Khaganate, which had been a vassal to Tang Dynasty's predecessor Sui Dynasty, had turned against Sui during the reign of Emperor Yang of Sui (r. 604-618) and subsequently, during Sui's breakup late in Emperor Yang's reign, had intervened in the process by supporting various claimants to the imperial title—including Tang's founder Emperor Gaozu, Xue Ju the Emperor of Qin, Liang Shidu the Emperor of Liang, Liu Wuzhou the Dingyang Khan, Gao Kaidao the Prince of Yan, Dou Jiande the Prince of Xia, and Liu Heita the Prince of Handong—playing them off against each other to try to make them subservient to the Eastern Turkic Khaganate. In 623, Liu Heita, the last major challenger to Tang rule, was captured and killed by Emperor Gaozu's crown prince Li Jiancheng, marking the reunification of China under Tang rule. The Eastern Turkic Khaganate, to which Emperor Gaozu still paid allegiance and tributes, began a campaign of routine pillaging incursions into Tang territory, effectively asserting authority over Tang territory in that manner, while continuing to protect Liang, who remained as the sole Chinese claimant of imperial authority against Tang, and also fostering the aspirations of Emperor Yang's young grandson Yang Zhengdao (楊政道), who was in the khaganate with his grandmother Empress Xiao and carried the title of Prince of Sui. The Turkic incursions were causing so many problems for the Tang that Emperor Gaozu considered burning the capital Chang'an to the ground and moving his seat to the modern southwestern Henan region, a proposal that was supported by Li Jiancheng, another son, Li Yuanji the Prince of Qi, and the chancellor Pei Ji, but vehemently opposed by Gaozu's son Li Shimin, the Prince of Qin. Due to Li Shimin's opposition (and guarantee that eventually he would be able to defeat the Eastern Turks), Emperor Gaozu abandoned the proposal.