List of emperors of the Han dynasty
The Han dynasty was founded by the peasant rebel leader (Liu Bang), known posthumously as Emperor Gao ("r". 202 –195 BC) or Gaodi. The longest reigning emperor of the dynasty was Emperor Wu ("r". 141–87 BC), or Wudi, who reigned for 54 years. The dynasty was briefly interrupted by the Xin dynasty of the former regent Wang Mang, but he was overthrown in 23 AD and the Han dynasty was reestablished by Liu Xiu, known posthumously as Emperor Guangwu (r. 25–57 AD), or Guangwu Di. The last Han emperor, Emperor Xian ("r". 189–220 AD), was a puppet monarch of Chancellor Cao Cao (155–220 AD), who dominated the court and was made King of Wei. In 220 AD, Cao's son Pi usurped the throne as Emperor Wen of Wei ("r". 220–226 AD) and ended the Han dynasty.
Yang Pu
Yang Pu (楊溥) (900 – January 21, 939), formally Emperor Rui of Wu (吳睿帝), known as Emperor Gaoshang Sixuan Honggu Rang (高尚思玄弘古讓皇(帝)) or, in short, Emperor Rang (讓皇, "the emperor who yielded"), while still living during the initial months of succeeding Southern Tang, was the last ruler of the Chinese Five Dynasties and Ten Kingdoms period state Wu, and the only one that claimed the title of emperor. During his reign, the state was in effective control of the regents Xu Wen and Xu Wen's adoptive son and successor Xu Zhigao. In 938, Xu Zhigao forced Yang Pu to yield the throne to him, who then established Southern Tang.