Dong Cheng Conspiracy Group
The Romance of the Three KingdomsThe Dong Cheng Conspiracy Group is a covert court faction organized to act on Emperor Xian’s secret, blood-written decree against Cao Cao. Its story turns the emperor’s lack of practical power into a dangerous attempt at political action: a hidden document authorizes resistance, a network of loyalists forms around it, and the discovery of the plot leads to the public execution of more than seven hundred people. The group’s failure exposes the gulf between loyalty to the Han and the ability to overcome the strongman who controls its court.
Formation and the secret decree
The conspiracy takes shape under a court in which Cao Cao’s influence makes open opposition perilous. Fu Wan tells Emperor Xian that the palace is full of Cao Cao’s supporters and proposes involving Dong Cheng, the brother of an imperial concubine. The plan depends on concealment: a formal robe and jade belt will be presented to Dong Cheng, with an imperial decree hidden in a pouch within the belt. The emperor writes the order in his own blood, and Empress Fu sews it into the concealed pocket.
The gift initially seems to have failed as a means of transmission. Dong Cheng cannot find a hidden compartment when he examines the belt at home. Only after he falls asleep does a spark from a candle burn through its lining; waking at the smell of the burning material, he discovers the document beneath it. The decree calls on him to gather patriots who will remove the rebels around Cao Cao and restore the dignity of the Han dynasty. Its discovery gives the faction both its authority and its central danger: the conspirators claim to act for the emperor, but they must organize secretly within a court Cao Cao effectively controls.
Recruitment and political purpose
Dong Cheng recruits fellow conspirators, recording their names on a long piece of white silk. The group includes Wang Zifu and Chong Ji; the surviving account also identifies Ma Teng as a participant in the discussions about whether Xuande can be trusted to join. The silk record makes a hidden political undertaking legible as a collective commitment, but it also becomes evidence that can condemn the group if uncovered.
Xuande’s involvement is not assumed. When Dong Cheng sounds him out, Xuande initially appears to defend Cao Cao after Dong Cheng refers to Guan Yu’s conduct during the hunt. Xuande explains that he has been testing Dong Cheng because he fears the approach may itself be a test arranged by Cao Cao. Once the two men establish trust, Xuande signs the white silk and commits himself to overthrowing Cao Cao. Aware that suspicion could expose him, he then devotes himself to work in his garden, presenting an appearance of withdrawal from affairs of state.
The faction’s stated purpose is restoration of the Han, not merely the replacement of one court figure with another. That goal reflects the political divide set out elsewhere in the narrative: Cao Cao’s command of a vast army and control over the emperor make him difficult to oppose, while loyalty to the Han remains a source of legitimacy for his challengers. The conspiracy makes that conflict personal and immediate by turning an imperial order into a clandestine plan of action.
Exposure and destruction
After Xuande leaves the capital, the remaining conspirators continue to meet and become increasingly distressed by Cao Cao’s arrogance. Dong Cheng’s physician, Ji Ping, learns of the plot when Dong Cheng, after drinking with him, speaks in his sleep about killing Cao Cao. Rather than betray him, Ji Ping declares his own loyalty to the Han and offers to poison Cao Cao when summoned to treat his severe headaches. The conspiracy thus acquires a proposed method of direct action, but the plan does not remain secret.
Cao Cao confronts Dong Cheng with accusations and the testimony of a slave. Dong Cheng tries to dismiss the charge, but a search of his house uncovers both the imperial decree inside the belt and the roll of silk bearing the conspirators’ names. These objects, designed to enable secret coordination, become decisive proof against the group. Once the evidence is in his hands, Cao Cao orders Dong Cheng and his household seized and considers deposing the emperor, though advisers warn that moving against the throne at that moment could provoke civil war.
Dong Cheng, four other conspirators, and their families and clans are publicly executed at the city gates. The account places the total number killed at more than seven hundred. The punishment destroys the network beyond its leading members, demonstrating how a failed court conspiracy brings consequences not only for its signatories but for their households. Cao Cao does not depose Emperor Xian at this point, but the exposed decree has shown that the emperor’s authority can be invoked against the man who controls him—and that such an invocation may leave its authors without the power to enforce it.
Significance in the struggle over Han legitimacy
The conspiracy’s central paradox is that its authority comes from the emperor, while its capacity to act depends on secrecy from the very court that surrounds him. Blood writing, the hidden belt compartment, and the white silk list give the plot a material chain of transmission: intention becomes a document, the document becomes a pledge among allies, and the pledge becomes incriminating evidence. The devices that preserve the emperor’s opposition also make the faction vulnerable once Cao Cao can search the conspirators’ homes.
The group’s defeat does not settle the question of who may claim the Han’s legitimacy. Later, when Cao Pi receives the abdication and establishes Wei, the change is presented through language of Heaven’s signs, the people’s wishes, and the precedent of the ancient ruler Yao. In Chengdu, Kong Ming responds to Wei’s emergence by urging Xuande to continue the Han line as its rightful heir. Against that later contest, Dong Cheng’s faction appears as an early, failed attempt to defend the dynasty through a secret imperial mandate. Its destruction marks the practical weakness of loyalty to the Han under Cao Cao, even as the dynasty’s legitimacy remains a live political claim.