Emperor Ai of Tang
Emperor Ai of Tang (27 October 89226 March 908), also known as Emperor Zhaoxuan (), born Li Zuo, later known as Li Chu (), was the last emperor of the Tang dynasty of China. He reigned—as but a puppet ruler—from 904 to 907. Emperor Ai was the son of Emperor Zhaozong.
Five Dynasties and Ten Kingdoms period
Traditionally, the era started with the fall of the Tang dynasty in 907 AD and ended with the founding of the Song dynasty in 960. Many states had been "de facto" independent kingdoms long before 907. After the Tang had collapsed, the kings who controlled the Central plain crowned themselves as emperors. War between kingdoms occurred frequently to gain control of the central plain for legitimacy and then over the rest of China. The last of the Five Dynasties and Ten Kingdoms states, the Northern Han, was not vanquished until 979.