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.
Han Eum
Han Eum () also known as Han Do () was one of the four members (No In, Han Eum, Sam and Wang Gyeop) who operated the government of Wiman Joseon. His position was a chancellor. Since Han Eum had a family name, Han, it is believed that he was an exile from China or person related to China. Just like his master Ugeo who was the last king of Wiman Joseon.　In BC 109 to 108, when Han dynasty attacked Wiman Joseon, he was surrendered instantly together with those exiles from China, No In and Wang Gyeop, while leaving the King of Wiman Joseon Ugeo. After his surrender, Han dynasty nominated him as a peerage of Jeok ja (Hangul:적자 Hanja:荻苴). He died after 19 years without a successor.