Gao Gan
In 106 BCE, during the Western Han dynasty (206 BCE – 9 CE), Emperor Wu divided the Han Empire into thirteen administrative divisions, of which Bingzhou was one. Bingzhou covered most of present-day Shanxi and parts of Hebei and Inner Mongolia. During the Eastern Han dynasty (25–220) Bingzhou's capital was designated in Jinyang County (晉陽縣; present-day Jinyuan District, Taiyuan, Shanxi), and the regions under its jurisdiction included most of present-day Shanxi, northern Shaanxi and parts of Inner Mongolia. In 213 Bingzhou was absorbed into another administrative division, Jizhou (or Ji Province). Near the end of the Eastern Han dynasty, during a succession dispute among the heirs of the warlord Yuan Shao (d. 202), Bingzhou eventually came under the control of Yuan's rival, Cao Cao (155–220). Yuan Shao's nephew Gao Gan surrendered to Cao in 203, rebelled in 205, but was defeated and killed by Cao in 206, and Bing Province was definitively annexed. Cao Cao moved Xiongnu herdsmen into Bingzhou and the adjacent Ordos Desert. By the 280s approximately 400,000 Xiongnu lived there, who later founded the states of Han Zhao (304-319) and Later Zhao (319–351).