Wiman Joseon (194–108 BC) was a dynasty of Gojoseon. It began with Wiman (Wei Man)'s seizure of the throne from Gojoseon's King Jun and ended with the death of King Ugeo who was a grandson of Wiman. Apart from archaeological data, the main source on this historical period comes from chapter 115 of Sima Qian's Records of the Grand Historian. Wiman was originally a Chinese military leader from the Kingdom of Yan under the Han dynasty.