Historical Record
Cheng Wu, whose courtesy name is unknown, was the son of the important Cao Wei advisor Cheng Yu. According to the Records of the Three Kingdoms, Cheng Yu was stern in temperament and often at odds with others, and someone even accused him of plotting rebellion; yet Cao Cao (Grand Progenitor) had full trust in him and treated him ever more generously. After the state of Wei was established, Cheng Yu served as Commandant of the Guards, but was later dismissed after a dispute over ceremonial precedence with the Internal Commandant Xing Zhen. When Cao Pi (Emperor Wen) ascended the throne, Cheng Yu was reinstated as Commandant of the Guards, advanced to the title Marquis of Anxiang, and given an increase of three hundred households, bringing his fief to eight hundred households in all. At the same time, Cheng Yu's younger son Cheng Yan and his grandson Cheng Xiao were also enfeoffed as full marquises. c:2949 Cheng Yu died just as he was about to be appointed a duke; Cao Pi wept for this and posthumously granted him the rank of General of Chariots and Cavalry, with the posthumous title Marquis Su. After Cheng Yu died, his son Cheng Wu inherited the title. c:2949 After Cheng Wu died, his son Cheng Ke succeeded to the title; after Cheng Ke died, his son Cheng Liang in turn succeeded. The historical sources record very little of Cheng Wu's own deeds, the chief emphasis falling on his identity as Cheng Yu's heir.
In the Novel
In the Romance of the Three Kingdoms, the figure of Cheng Wu receives literary development; he is no longer merely a title-heir passed over in a single line of the annals, but appears as an army adviser displaying some military strategy. c:2950 In the novel, Cheng Wu appears in the identity of Cheng Yu's son. In Chapter 92, after Xiahou Mao was defeated by Zhao Yun at Fengming Mountain, Xiahou Mao, faced with Zhao Yun's valor, was at a loss—indeed he reckoned that Zhao Yun, though old, had lost none of his heroic spirit. At this point Cheng Wu advised Xiahou Mao, holding that Zhao Yun "has valor but no strategy, and is no cause for concern." c:2950 He thereupon offered a plan, advising Xiahou Mao to lead the troops out to fight, with two forces lying in ambush to left and right beforehand; then Xiahou Mao would feign defeat and lure Zhao Yun into the ambush. Once Zhao Yun was surrounded, Xiahou Mao would mount a height to direct the forces on all four sides, encircling him layer upon layer, and so could capture Zhao Yun. Xiahou Mao adopted Cheng Wu's plan and dispatched Dong Xi and Xue Ze, each leading thirty thousand troops, to lie in ambush separately. The novel, however, does not detail the eventual success or failure of this plan; yet this appearance of Cheng Wu confers upon him the image of an adviser. Though the actual effect of his plan is never fully shown in the novel, his judgment that Zhao Yun "has valor but no strategy" becomes the key point of his characterization. This episode has no basis in the histories and is a piece of literary invention unique to the novel.
Key Relationships
Cheng Wu's most crucial relationship is with his father, Cheng Yu. In historical fact, Cheng Wu, as Cheng Yu's heir, inherited his father's title and was the continuation of the family's bloodline and standing. c:2949 This father-son relationship was not merely biological but also a transmission of social standing and political legacy. In the Romance of the Three Kingdoms, Cheng Wu's identity is explicitly given as "son of Cheng Yu," c:2950 which not only stresses his origins but also lets readers understand Cheng Wu's background through his father's renown. In addition, Cheng Wu also had a relationship of service to the Cao Wei regime: whether in history as the descendant of the Commandant of the Guards Cheng Yu, or in the novel as army adviser to Xiahou Mao, he belonged to the Cao Wei camp.
Signature Scenes
Cheng Wu has no specific signature scene in the historical sources, the record being limited to the genealogy of the family succession. c:2949 In the Romance of the Three Kingdoms, however, Cheng Wu has a clear and representative scene—namely the passage after the Battle of Fengming Mountain in which he offers Xiahou Mao a plan to capture Zhao Yun. c:2950 (novel only) In this scene, Cheng Wu appraises Zhao Yun as having "valor but no strategy, no cause for concern," and puts forward a stratagem of luring the enemy in deep and surrounding him with ambushes. Although the actual effect of this plan is never fully unfolded in the novel, this scene clearly displays Cheng Wu's image as an adviser, as well as his judgment of the enemy general Zhao Yun. It is the only moment in the Romance of the Three Kingdoms where Cheng Wu shows specific words, deeds, and strategy, and so it becomes his most signature scene.
Relationships
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Family1
Lines
- 演 ch.92 §7
「某料趙雲有勇無謀，不足為慮。來日都督再引兵出，先伏兩軍於左右；都督臨陣先退，誘趙雲到伏兵處，都督卻登山指揮四面軍馬，重疊圍住，雲可擒矣。」
Chapters2 回 ▸
- 史ch.14
- 演ch.92
Inner monologues · AI-generated1 段 ▸
- My name is Cheng Wu; no courtesy name for me is recorded in the histories. As for my place in the family, I was a son of