汉文帝
In pre-Han times (i.e., before 206 BC), the site of the city of Shiyi in the state of Zhao was located in this area. After taking over Zhao, Qin Shi Huang established Hengshan Commandery in the region. It became part of the Zhao Principality under Western Han. The land was briefly granted to Liu Buyi (), son of the Emperor Hui, during Empress Dowager Lü's reign. The territory was then passed to Liu Hong, Emperor Houshao of Han, after Buyi's death. It was then granted to Liu Chao (), another son of Emperor Hui. During the defeat of the Lü clan, Liu Chao was killed and the territory became a commandery of Zhao once again. Later, due to a naming taboo of Emperor Wen of Han, whose personal name is Liu Heng, its name was changed to Changshan. From Han (206 BC–AD 220) to Sui (581–618) times it was the site of a county seat named Shiyi.