Xuande–Guan Yu sworn brotherhood
The Romance of the Three KingdomsXuande–Guan Yu sworn brotherhood begins as a deliberate vow made by Xuande and Guan Yu alongside Zhang Fei, and becomes a defining bond in their shared struggle. The three pledge to stand by one another, protect the people, and pursue their purpose together; their sworn relationship later gives Guan Yu a reason to live when he is tempted to die rather than submit. The brotherhood is at once personal allegiance and a public commitment, rooted in the Peach Orchard and repeatedly tested by war, separation, and competing duties.
The Peach Orchard Oath
Xuande and Guan Yu first meet Zhang Fei at an inn, where all three have arrived in response to a call to arms after a revolt. Guan Yu, who says he has spent years travelling after killing a bully who terrorized local people, welcomes Xuande’s plans to join the effort. Zhang Fei then invites the two men to his nearby manor to discuss their course of action. Behind the house is a peach orchard in full flower, and he proposes that they make offerings to Heaven and Earth there and bind themselves to fight side by side.
The next day, the three go to the orchard and prepare offerings that include a black bull and a white horse. With incense burning, they make their vow. Its central promise is that although they come from separate families, they will stand by one another. The oath makes their bond something more than a convenient military partnership: they publicly place their loyalty under the witness of Heaven and Earth, and commit themselves to a shared undertaking.
Afterward, they agree on their places within the brotherhood: Xuande is the elder brother, Guan Yu the second, and Zhang Fei the third. They cook the sacrificial meat, share wine, and invite roughly three hundred local recruits to feast with them in the orchard. The ceremony therefore joins personal vows to the formation of a fighting group. In the following days they gather weapons, horses, and armor; Xuande has two double-edged swords made, Guan Yu orders a curved sword called Cold Wonder, and Zhang Fei commissions a long spear. By the time they report for duty to Liu Yan, some five hundred young men have joined them.
From Oath to Shared Action
The brotherhood is immediately put into practice. When a Yellow Headband army of about fifty thousand attacks the Zhuo district, Xuande leads his men against it with Guan Yu on his left and Zhang Fei on his right. In the ensuing fight, Zhang Fei kills the enemy champion and Guan Yu defeats the champion’s companion; the rebels flee, and many are captured. The brothers’ arrangement is thus shown in action: Xuande leads, while Guan Yu and Zhang Fei fight beside him as trusted counterparts.
Their shared identity persists beyond this first campaign. When Cao Cao’s army advances on Xinye, Kong Ming assigns Guan Yu a concealed position in the hills around Bowang, where he is to wait for the signal of fire before attacking the enemy’s rear and supply train. Zhang Fei is assigned a separate ambush near Bowang, while Zhao Zilong leads an advance party under orders to feign retreat. Guan Yu and Zhang Fei doubt the plan, particularly because Kong Ming will not be near the fighting, but Xuande rebukes them and requires them to cooperate. Their bond does not erase disagreement: the brothers can question a commander’s judgment, yet Xuande’s authority and their common cause bring them back into the same operation.
The oath’s military significance also depends on planning and trust, not only courage. At another siege, Jia Xu identifies Cao Cao’s attention to the vulnerable southeastern wall as a possible deception: Cao Cao appears to be preparing an attack elsewhere while disguising where he intends to strike. Jia Xu advises Zhang Xiu to hide elite troops near the weak wall and make the opposite side look defended. This account shows the kind of deceptive warfare that surrounds Xuande and Guan Yu’s shared campaigns. The brotherhood supplies a lasting bond among the leaders, but the danger they face also demands vigilance about what an opponent intends.
The Oath as an Ethical Obligation
The clearest later test of Guan Yu’s relationship with Xuande comes when Guan Yu is surrounded and considering whether to die rather than surrender. Zhang Liao argues that such a death would amount to three failures. First, Guan Yu had promised his brothers that they would die together; if Xuande survived and still needed him, Guan Yu’s self-chosen death would make the pledge useless. Second, Xuande’s family had been placed in Guan Yu’s care, and his death would leave them without his protection. Third, the men had sworn to protect the Han dynasty, a duty that would be abandoned if Guan Yu died merely to avoid submission.
Zhang Liao’s appeal reframes the oath as a responsibility to continue serving, not simply a promise to share a final fate. He urges Guan Yu to submit because doing so would keep him alive, preserve his ability to protect Xuande’s family, and leave open the possibility of fulfilling the brothers’ pledge. In this argument, loyalty is measured not by a dramatic death but by the obligations that surviving creates. The bond connects brotherhood to care for Xuande’s household and to service to the Han, setting personal allegiance within a wider political duty.
The force of this appeal depends on the specific order of the brothers. Xuande’s position as elder brother makes Guan Yu’s responsibility to him legible as a family-like obligation; Guan Yu’s place as second brother does not make him a subordinate without agency, but gives his choices lasting consequences for the group. Zhang Liao invokes that structure when he warns that Guan Yu’s death could deprive Xuande of a needed ally. The oath thus functions as a standard for judging conduct even when the brothers are physically separated and cannot act together.
Significance and Limits of the Bond
The relationship is introduced through a vow that joins loyalty, public protection, and shared purpose. Its first practical consequence is the creation of a small force that grows from the three men’s alliance into several hundred recruits. Its later importance lies in how it makes their separate actions answerable to one another: Xuande expects Guan Yu and Zhang Fei to cooperate in battle, while Zhang Liao can persuade Guan Yu to reconsider death by recalling his obligations to his brothers.
The evidence also presents the brotherhood as a bond tested rather than perfected by constant agreement. Guan Yu and Zhang Fei resent Xuande’s choice of Kong Ming as adviser and initially hope that Kong Ming’s military plan will fail. They nevertheless take their assigned roles when Xuande orders them to do so. Their loyalty therefore does not mean that doubts disappear; it means their disagreement remains inside a larger commitment to Xuande and their shared cause.
The Peach Orchard gives the relationship its emblematic origin, but its meaning is carried forward in decisions far from the orchard. A ritual vow becomes a durable claim on the living: Guan Yu is reminded that Xuande may still need his help, that Xuande’s family depends on him, and that their pledged service extends beyond private loyalty. The brotherhood’s decisive significance is this transformation of sworn affection into an active obligation—one that shapes military cooperation and constrains the choices its members can make alone.
