Longxi Commandery

Longxi Commandery (Chinese: trad. , simp. , Lǒngxījùn) was a commandery of imperial China in present-day Gansu.

Established by Shi Huangdi, it originally covered the entire territory of the Qin Empire west of Mount Long with its capital at Didao (present-day Taoyang in Lintao County). This area included most of the upper Wei valley. Its principal route of communication was the Long Road (named for the mountain), which probably passed along the course of the modern railroad west from Xi’an although much of the area nearest the river was then marshland. The territory was used as a staging ground for campaigns up the Tao and the upper Yellow River.

The first governor was Li Chong (李崇), considered the originator of an important clan of the Li family.

The Emperor Wu of the Han dynasty, as part of his expeditions into the Tarim Basin, established Tianshui Commandery to control the Wei valley immediately to the west of Mount Long. The southern parts of the old commandery controlling the Han and Bailong were reörganized as Wudu. The remnant of Longxi controlled eleven counties in the far west of the Wei and the Tao valley.

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