Contents
Biography & Historical Record
Dong Heng (董衡, died 219 AD) was a military officer serving under the warlord Cao Cao during the late Eastern Han dynasty. He served as a subordinate commander under the fierce general Pang De during the pivotal campaign in Jing Province.
In the autumn of 219 AD, Guan Yu launched an offensive against Cao Ren at Fancheng. In response, Cao Cao dispatched General of the Left Yu Jin and General Pang De with seven armies to relieve the besieged garrison. Heavy autumnal downpours caused the Han River to overflow its banks, completely inundating the low-lying plains and submerging the camps of the Wei forces. While Yu Jin and the bulk of the troops were isolated and eventually forced to capitulate, Pang De rallied his men—including Dong Heng and another officer named Dong Chao (董超)—to make a desperate stand on a remnant embankment.
Surrounded by Guan Yu’s waterborne forces and under heavy bombardment of arrows, Dong Heng and Dong Chao realized that their tactical situation was entirely hopeless and proposed surrendering to Guan Yu to spare their remaining soldiers. However, Pang De was fiercely loyal to Cao Cao and refused to waver. Viewing their suggestion as high treason and an act of cowardice that threatened the resolve of his surviving men, Pang De summarily executed both Dong Heng and Dong Chao on the spot before continuing his fight to the death.
Role in Romance of the Three Kingdoms
In Luo Guanzhong’s historical novel Romance of the Three Kingdoms, Dong Heng appears in Chapter 74 during the dramatic Battle of Fancheng. As Guan Yu directs the floodwaters to engulf the seven armies, Pang De and a handful of soldiers retreat to a small dyke. Observing the utter devastation and seeing Guan Yu’s naval vessels approach from all sides, Dong Heng urges Pang De to surrender.
“Our forces are drowned, our arrows exhausted, and there is no avenue of escape. General Guan Yu is unmatched in valor; it would be wise to surrender and preserve our lives.”
Hearing this, Pang De flew into a violent fury, shouting that he would rather die as a loyal ghost of the King of Wei than live as a captive traitor. He immediately drew his sword and decapitated Dong Heng and Dong Chao before the assembled troops, terrifying the survivors into fighting alongside him until the bitter end.
Dong Heng — Historical & Literary Timeline
The Relief of Fancheng
Marched south under Pang De as part of Yu Jin’s seven-corps relief expedition to break Guan Yu’s siege of Cao Ren at Fancheng.
The Inundation and Execution
Trapped on an elevated bank following the Han River floods. Suggested surrendering to Guan Yu due to the lack of supplies and was promptly executed by Pang De for demoralizing the army.
Key Relationships
Family
- No information
Friends
- Dong Chao (董超, Đổng Siêu): Fellow military officer under Pang De. Trapped alongside Dong Heng on the flooded embankment at the Battle of Fancheng (219 AD), sharing the same tragic fate.
- Yu Jin (于禁, Vu Cấm): General of the Left and Supreme Commander of the seven Wei relief armies who capitulated to Guan Yu when the Han River flooded (219 AD).
- Cao Cao (曹操, Tào Tháo): King of Wei whose imperial army Dong Heng served in the northern expeditions.
Enemies
- Pang De (庞德, Bàng Đức): Senior general of Cao Wei. During the disastrous flooding of Fancheng in 219 AD, when Dong Heng and Dong Chao urged Pang De to surrender to preserve their surviving soldiers’ lives, Pang De flew into a violent rage over their defeatism and personally decapitated Dong Heng with his sword.
- Guan Yu (关羽, Quan Vũ): Grand General of Shu Han. Unleashed the catastrophic Han River flood that drowned the seven Wei armies and completely encircled Dong Heng’s position at Fancheng (219 AD).
- Guan Ping (关平, Quan Bình): Senior vanguard general of Shu Han whose naval squadrons rained arrows upon the trapped Wei embankment.
Others
- No information
In Novel
Chapter 74
- Dong Heng (董衡, Đổng Hành): Dong Heng serves under Pang De in Cao Cao’s army during the relief of Fan Castle. He objects to Pang De being appointed as the principal commander, arguing that Pang De formerly served Ma Chao and that Ma Chao is now one of Liu Bei’s generals. When Pang De is chosen anyway, Dong Heng continues with the army. During Guan Yu’s flood attack, Pang De’s position collapses; Dong Heng and Dong Chao consider surrendering to Guan Yu. Pang De discovers their intention and kills both men. Dong Heng therefore dies because Pang De regards his attempted defection as betrayal.
In History
Wei Service
219 AD
- During Guan Yu (关羽, Quan Vũ)‘s northern campaign against Wei, Dong Heng was stationed at Fancheng and served under Cao Ren (曹仁, Tào Nhân).
Battle of Fancheng
- As Guan Yu’s forces placed Fancheng under heavy pressure, Dong Heng was involved in the defence. The battle became one of the most dangerous moments for Cao Cao’s regime before reinforcements under Xu Huang (徐晃, Từ Hoảng) broke the siege.
219 AD
- Dong Heng was killed during the fighting at Fancheng. His death occurred during the intense defensive struggle that eventually ended Guan Yu’s northern offensive.