Zhuge Dan's Rebellion

Zhuge Dan’s Rebellion is a revolt against Sima Zhao’s growing control of Wei, set off when Zhuge Dan refuses to countenance replacing Emperor Cao Mao. A senior Wei commander who has risen through his own ability, Zhuge Dan answers political pressure with armed resistance: he takes the provincial capital, summons a large force, and turns to Wu for help. The rebellion ends at Shouchun, where Sima Zhao’s superior army, the collapse of Wu’s support, and Zhuge Dan’s own severity combine to bring the besieged city down.

Political rupture

The immediate dispute emerges while Sima Zhao, already the effective ruler of Wei, considers taking the imperial title. His adviser Jia Chong visits Zhuge Dan at Huainan and, in the course of a meal, raises the possibility that Sima Zhao should take the throne because some people regard him as more capable than the emperor. Zhuge Dan answers without hesitation that he would die fighting to protect the throne. He also rebukes Jia Chong for even proposing such a course, invoking Jia’s inherited connection to Wei service as a reason he should not entertain the idea.

Zhuge Dan’s position is especially consequential because he is not an outsider to Wei’s political establishment. A cousin of Kong Ming, he has nonetheless advanced gradually through Wei’s ranks through his own abilities and commands forces on both sides of the Huai River. His declaration of loyalty therefore confronts Sima Zhao with opposition from within the state’s own military leadership. When Jia Chong reports the exchange, Sima Zhao is alarmed. He first tries to draw Zhuge Dan to court by offering him another post, but Zhuge Dan recognizes the danger behind the invitation. A separate letter ordering the regional governor Yue Chen to have him executed confirms that the threat is no longer merely political.

Seizure of the capital and alliance with Wu

Once he learns of the order, Zhuge Dan acts before Sima Zhao can remove him. He gathers a thousand men, takes the provincial capital, and kills Yue Chen and his family. He then sends the emperor a formal memorial denouncing Sima Zhao and his crimes. The memorial makes the rebellion a direct challenge to the regent’s authority, while Zhuge Dan’s recruitment of men from the countryside rapidly turns his initial seizure into a major military rising: within weeks, his force numbers about 150,000.

Zhuge Dan also seeks an alliance with Wu. That appeal arrives amid upheaval there: after the death of the prime minister Sun Jun, his cousin Sun Chen has taken control, while Emperor Sun Liang is unable to restrain him. Sun Chen responds to Zhuge Dan’s request by sending 70,000 troops. The alliance gives the revolt a second army and makes the conflict a contest between Sima Zhao’s Wei forces and a coalition of Zhuge Dan’s followers and Wu’s expeditionary troops.

Sima Zhao’s campaign

After reading Zhuge Dan’s memorial, Sima Zhao resolves to suppress the rebellion himself and leads the campaign. Jia Chong warns that leaving the capital could invite a court uprising, so Sima Zhao takes Emperor Cao Mao and the queen mother along with the army. The force advancing south numbers about 260,000. Wu’s commander Zhu Yi moves north, and the first engagement favors Wei, forcing the Wu troops to withdraw and reconsider their position. Zhuge Dan then brings his forces forward, beginning the main confrontation.

Sima Zhao gains a decisive advantage by exploiting the Wu soldiers’ lack of commitment to the cause. He leaves supply wagons filled with grain, weapons, and other materials at the edge of the battlefield. When Zhuge Dan and his Wu allies attack, the Wu troops leave the fighting to loot the wagons, abandoning Zhuge Dan’s men and exposing them to defeat. The survivors retreat into Shouchun to prepare for a siege. Wu’s forces hold nearby Anfeng, but their presence does not restore the failing alliance. Sun Chen orders attacks that achieve little and cost Wu soldiers; he then executes the commander responsible and blames him for the failures. As the consequences of his own decisions mount, a Wu commander, Quan Yi, defects to Wei.

Siege and collapse at Shouchun

The rebellion’s military position deteriorates further when Quan Yi’s uncle, inside Shouchun, receives news through him and also defects, taking his men out of the city to join Wei. Sun Chen abandons the campaign and hurries back to Wu, leaving Zhuge Dan without the support on which he had depended. The episode shows the alliance unraveling not through a single negotiated settlement but through battlefield distraction, failed attacks, desertion, and the withdrawal of its leading Wu commander.

Inside Shouchun, Zhuge Dan’s conduct hastens the collapse. His temper leaves little room for disagreement: he responds to alternative military advice with contempt, alienating commanders who begin to desert. As starvation takes hold, the defenders grow weaker. Zhuge Dan treats complaints with force, personally moving through the streets and striking those who voice them. His severity produces the opposite of cohesion; it encourages further desertion at the moment the besieged force most needs to hold together.

The city is eventually stormed. Zhuge Dan attempts to escape but is trapped and killed. His family is killed as well, and more than three hundred of his loyal soldiers refuse to submit to Sima Zhao and are executed. The Wu soldiers caught in the city’s fall surrender. Sima Zhao initially wants them all killed, but is persuaded to spare them because mercy could benefit Wei’s future relations with Wu. The settlement therefore distinguishes between Zhuge Dan’s defeated household and loyalists, on the one hand, and the captured Wu troops, whose survival serves a political purpose.

Consequences and significance

The defeat removes Zhuge Dan as a military opponent and demonstrates how thoroughly Sima Zhao can mobilize Wei’s forces against a challenge to his authority. The emperor accompanies the campaign, but the decision to lead, the command of the army, and the suppression of the revolt all belong to Sima Zhao. Zhuge Dan’s appeal to defend the throne thus exposes the contradiction at the heart of Wei’s politics: resistance is conducted in the emperor’s name, while the regent who defeats it is the figure exercising effective power.

The rebellion also alters the circumstances of the continuing war with Shu. After hearing that Zhuge Dan’s revolt has failed and the Wu troops have surrendered, Jiang Wei learns that the upheaval he had hoped to exploit has ended. He had invaded Wei and besieged Changcheng, where Sima Wang had taken refuge; Wei reinforcements under Deng Ai had already produced a stalemate. News of Shouchun’s fall and the surrender of Wu’s soldiers confirms that the political crisis will not provide the opening Jiang Wei sought. The revolt’s end therefore reaches beyond its immediate battlefield: its suppression strengthens Sima Zhao’s position and closes a window of opportunity for Wei’s external enemies.