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