At that time, there were four counties in Dai Jun, Yanmen, Dingxiang and Taiyuan, which were equivalent to the central, northeastern and northwestern parts of Shanxi today. Liang Xiaowang was divided into Taiyuan County, and the country of Taiyuan was established, which was restored on behalf of Wang Hangxiao. Emperor Wu of the Han Dynasty divided many vassal states. When Liu Yi changed the national seal to Qinghe, the country name was Taiyuan County.