Zhu Wen
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.