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.
Southern Tang
The last ruler, Li Yu (Li Houzhu), took over the state upon the death of his father in 961. The Song dynasty had conquered the northern part of the state located in Huainan, and thus Li Yu reigned no longer as an emperor but as the Ruler of the State of Jiangnan (Jiangnan guozhu 江南國主). Li Yu managed to maintain a semi-independent status of vassal of the Song but had to finally surrender after fighting for almost a year in 975. He was taken to the Song capital in Kaifeng where he offered his formal surrender to the Song emperor in early 976.