Wiman of Gojoseon

In 196 BC, Emperor Gaozu suspected Lu Wan of plotting rebellion and ordered an attack against Yan.

Lu Wan fled to the Xiongnu while his general Wiman (Wei Man) led a thousand followers east to Gojoseon.

[2] Since the Han dynasty was not completely stabilized yet, the governor of Liaodong appointed Wiman as an outer subject, provided that he did not prevent natives going up to the empire.

[3] Having superior military strength, Wiman Joseon was able to subjugate the state of Jinbeon (진번; 眞番) and Imdun (임둔; 臨屯), vastly extending its borders.

His kingdom was eventually conquered by Emperor Wu of Han in 108 BCE during the reign of Ugeo of Gojoseon.