Southern Tang Dynasty (937 -975) was one of the Five Dynasties and Ten Countries, with Jinling as its capital. It lasted for 39 years and there were three emperors: Li Bian, Li Jing, the middle ruler, and Li Yu, the later ruler. During the Southern Tang Dynasty, the territory reached its peak in 35 states, spanning Jiangxi Province and parts of Anhui, Jiangsu, Fujian, Hubei and Hunan provinces. The population is about 5 million. Southern Tang III, with its developed economy and prosperous culture, made the Jianghuai region "richer than in previous years" in the Five Dynasties' troubled times and made great contributions to the economic development of southern China. Therefore, Southern Tang Dynasty became one of the important regimes in the history of China.

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Li Bian, the founding emperor, was the adopted son of Xu Wen, the minister of Wu. Xu Wen is equivalent to Cao Cao, basically holding the emperor to make the princes, and later accepted the abdication of Wu State and became the emperor.

Nantang was originally the most powerful country in the south, but by the time of Li Jing, Nantang was already dying. It had a battle in Chai Rong and the Northern Zhou Dynasty, which failed and ceded all the territory north of the Yangtze River. The territory of the Northern Zhou Dynasty is across the Nanjing River. Can it not be conquered?

You know, the last queen, Li Yu, was finally destroyed by the Northern Song Dynasty.