Emperor Ai of Tang
In 904, Zhu forced Emperor Zhaozong to move the capital from Chang'an to Luoyang, which was even more firmly under his control. Later that year, fearing that the adult Emperor Zhaozong would try to rise against him while he was away on campaigns against other warlords, he had Emperor Zhaozong assassinated. Bypassing Li Yu and the other older princes, he had an edict issued in Emperor Zhaozong's name creating Li Zuo crown prince and changing his name to Li Chu. Shortly after, Li Chu took the throne (as Emperor Ai). Empress He, who survived the assassination, was honored empress dowager.
Administrative divisions of the Tang dynasty
With the extermination of the court eunuchs in 903, the warlord Zhu Wen obtained absolute authority over the emperor. Since Zhu's core holdings were in Henan, he forced Zhaozong to move east to Luoyang in 904, where he was killed. The great city of Chang'an was abandoned and its structures dismantled for their building materials, never again attaining the strategic importance and prestige it presided over for the last millennium. Three years later in 907, the Tang empire officially came to a close when Zhu Wen dethroned its last sovereign.