Key Facts
- Date
- 5–6 October 618
- Context
- Succession struggle following Sui dynasty collapse
- Victor
- Wang Shichong
- Aftermath
- Wang declared himself emperor of the Zheng dynasty
- Wang's rule ended
- 621, surrendered to Tang prince Li Shimin
Strategic Narrative Overview
Wang chose to gamble on open battle rather than endure continued siege, leading his army out to strike Li Mi's besieging force. Li assembled his troops on a defensively favourable position north of Yanshi town, but Wang's advance caught them before they could properly form up. A secondary cavalry attack against Li's rear compounded the confusion, and Wang's forces routed the enemy. Li Mi escaped with a remnant of his army, but his coalition of followers disintegrated.
01 / The Origins
Following the collapse of central Sui authority, rival warlords competed for control of the dynasty's heartland. Wang Shichong held Luoyang as an ostensible Sui loyalist but had been blockaded there for months by Li Mi, whose forces dominated the surrounding countryside in Henan. Both commanders sought to consolidate power ahead of other contenders, including the rising Tang dynasty in the northwest, making a decisive confrontation inevitable.
03 / The Outcome
Stripped of his authority, Li Mi fled to the Tang court, where he was later captured and executed by Sheng Yanshi. Wang Shichong consolidated control over Henan, deposed the Sui puppet emperor Yang Tong, and proclaimed himself emperor of the new Zheng dynasty. His ascendancy was short-lived; in 621 he surrendered to Tang prince Li Shimin, who went on to unify China under the Tang dynasty.
Belligerents & Mobilization Analysis
Side A
1 belligerent
Wang Shichong.
Side B
1 belligerent
Li Mi.
Kinetic Engagement Axis
Scroll horizontally to view full axis. Events plotted relatively.