Born in the late Northern Zhou period, he grew up amid heavy taxation and local disorder in the North China Plain. Later sources place his origins in Zhangnan, where rural networks shaped his early following and reputation.

As Sui Emperor Wen and then Emperor Yang expanded corvée labor, he experienced the burdens of grain transport and security work. Those obligations, common in Hebei, exposed him to village grievances and armed organization.

When Emperor Yang’s campaigns and canal projects intensified conscription, banditry and revolt spread across the north. He gathered men from local lineages and displaced farmers, presenting himself as a protector against predatory officials.

He distinguished his camp by limiting looting and rewarding merit, which attracted both fighters and administrators. By negotiating with gentry families and market towns, he secured food supplies and intelligence across key river crossings.

As Sui authority unraveled, he captured walled towns and used their granaries to sustain year-round campaigning. Control of roads and ferries in Hebei allowed him to tax commerce and present himself as a regional stabilizer.

News of Li Yuan’s move at Taiyuan and the spread of rival claimants forced him to choose legitimacy strategies. He cultivated alliances and monitored competitors like Li Mi and Wang Shichong, seeking leverage without early overextension.

After the Sui collapse and competing successions, he declared an independent state known as Xia to formalize taxation and command. The move aimed to attract officials and reassure communities that order, not plunder, would govern his army.

He relied on clerks and local notables to run registers, collect grain, and adjudicate disputes in newly held counties. By appointing capable subordinates and using written orders, he sought to compete with Tang institutional credibility.

Facing shifting coalitions, he targeted strategic prefectures rather than symbolic capitals, aiming to control supplies and manpower. His victories expanded Xia influence while avoiding direct confrontation with every claimant at once.

As Wang Shichong held Luoyang and Tang advanced, he weighed whether to let rivals exhaust one another or intervene decisively. His position in Hebei made him the key counterweight whose decision could shape the contest for central plains.

When Tang forces under Li Shimin tightened pressure on Luoyang, he chose to aid Wang Shichong to prevent Tang dominance. The decision committed Xia’s main army to a high-stakes campaign far from its Hebei base and granaries.

At Hulao Pass, Li Shimin used terrain and timing to strike Xia forces when they were stretched and uncertain. The defeat shattered Xia’s field army and left its leadership exposed, enabling Tang to dictate terms across the region.

After the collapse of his campaign, he was captured and taken into Tang custody as a symbol of the end of major resistance in the north. His capture accelerated defections among commanders and weakened Xia’s remaining administrative cohesion.

With Luoyang secured and rival regimes collapsing, Tang leaders treated him as a dangerous focal point for renewed rebellion. His execution removed a charismatic alternative claimant and signaled Tang’s intent to reunify China by force and law.

After his death, remaining Xia commanders faced internal splits and relentless Tang pressure, leading to surrender or defeat. Tang administrators restored prefectural governance in Hebei, incorporating former Xia soldiers into new frontier and garrison units.

Later histories portrayed him as more orderly than many contemporaries, emphasizing restraint toward civilians and attention to administration. His career became a case study in how logistics, timing, and legitimacy decided the wars of reunification.