Yu Jin

Vu Cấm

NAME
Chinese Name于禁, 于禁, Yú Jìn
NicknameGeneral Who Pacifies the Yi; disciplined Cao veteran
Other nameVu Cấm
Courtesy name文则, 文則, Wénzé, Wen Ze, tự Văn Tắc
INFORMATION
Birth PlaceJuping County, Taishan Commandery (泰山郡钜平县; huyện Cự Bình, quận Thái Sơn)
Died221
Death ReasonDied of illness and grief after public shame under Cao Pi (221 AD)
FAMILY
Children
CAREER
AllegianceCao Cao / Cao Wei (briefly forced under Guan Yu after capture)
Battles
  • Early Cao campaigns (Yanzhou, Puyang, Guandu)
  • Wancheng crisis (discipline episode)
  • Red Cliffs river defense (novel Ch. 46)
  • Battle of Fancheng (219) — flood & surrender

Biography & Historical Record

Yu Jin (于禁, Vu Cấm) (?–221 AD), courtesy name Wenze (文则, Văn Tắc), was one of Cao Cao’s (曹操, Tào Tháo) most disciplined senior generals—grouped among the elite commanders who built Wei’s early armies. A native of Juping in Taishan, he enforced order even in disaster: at Wancheng he holds the rear while Qingzhou troops riot, earning Cao Cao’s lasting trust.

In the Borrowing Arrows arc the novel makes him joint naval commander with Mao Jie (毛玠, Mao Giới) after Cai Mao (蔡瑁, Sái Mạo) and Zhang Yun (张允, Trương Doãn) are executed—ordering endless volleys into Zhuge Liang’s fog-shrouded straw fleet. His historical tragedy comes later: at Fancheng (219) his army is flooded and he surrenders to Guan Yu (关羽, Quan Vũ); returned under Cao Pi (曹丕, Tào Phi), he dies of illness and shame in 221 after seeing murals that damn his surrender.

Role in Romance of the Three Kingdoms

Yu Jin’s novel career spans Cao Cao’s rise—Yanzhou, Puyang, Guandu, the southern push—then the humiliation of Fan Castle. At Red Cliffs (Ch. 46) he is the inland general miscast as a river admiral: drums and arrows into mist, never daring to launch boats, handing Zhuge Liang (诸葛亮, Gia Cát Lượng) a hundred thousand shafts.

Yu Jin (于禁) — Historical & Literary Timeline

Chapter 10–12

Joins Cao Cao’s rise

Enters service in Yanzhou; fights in the early wars against Lü Bu and rival lords.

Chapter 16

Discipline at Wancheng

Holds formation and suppresses Qingzhou disorder during the night crisis after Zhang Xiu’s attack—defining his reputation.

Chapter 30–32

Guandu & north

Guards lines and supplies in the campaign that breaks Yuan Shao’s power.

Chapter 46

Fog and arrows at Red Cliffs

With Mao Jie, commands Cao Cao’s river defenses after Cai Mao/Zhang Yun die; empties quivers into Zhuge Liang’s straw boats.

Chapter 73–76

Fancheng disaster

Flooded and captured by Guan Yu; the surrender stains a lifetime of stern service.

221 AD

Death under Cao Pi

Repatriated, then broken by public shame; dies of illness and grief.

See Yu Jin on Wikipedia.

Key Relationships

Family

  • Yu Gui (于圭): Son (linked on site).

Friends

  • Cao Cao (曹操, Tào Tháo): Lord who prized Yu Jin’s discipline.
  • Mao Jie (毛玠, Mao Giới): Novel co-commander of the river defenses during the straw-boat raid.
  • Zhang Liao (张辽, Trương Liêu) / fellow elite Cao generals: peers in Wei’s veteran cadre.

Enemies

  • Guan Yu (关羽, Quan Vũ): Captor at Fancheng after the flood.
  • Lu Bu (吕布, Lã Bố), Yuan Shao (袁绍, Viên Thiệu), Zhang Xiu: Earlier battlefield opponents.

Other

  • Cao Pi (曹丕, Tào Phi): Emperor whose court spectacle of shame precedes Yu Jin’s death.
  • Zhuge Liang (诸葛亮, Gia Cát Lượng): Novel beneficiary of Yu Jin’s fog-bound arrow storm.

Appearance

Scraping the Bone to Treat Poison
Scraping the Bone to Treat Poison
View
Borrowing Arrows with Straw Boats: Zhuge Liang’s Masterstroke & Truth
Borrowing Arrows with Straw Boats: Zhuge Liang’s Masterstroke & Truth
View

In Novel

Chapter 10–12

  • Yu Jin (于禁, Vu Cấm): Courtesy Wenze (文则); joins Cao Cao (曹操, Tào Tháo) in Yanzhou and fights in the early campaigns including clashes tied to Lu Bu (吕布, Lã Bố).

Chapter 16

  • Yu Jin (于禁, Vu Cấm): At Wancheng, keeps strict discipline during the chaotic night retreat, checking mutinous Qingzhou troops while Zhang Xiu presses the rear—earning Cao Cao’s deep trust.

Chapter 30–32

  • Yu Jin (于禁, Vu Cấm): Holds river and supply lines in the Guandu war that breaks Yuan Shao (袁绍, Viên Thiệu).

Chapter 46

  • Yu Jin (于禁, Vu Cấm): After Cai Mao (蔡瑁, Sái Mạo) and Zhang Yun (张允, Trương Doãn) are executed, co-commands the river defenses with Mao Jie (毛玠, Mao Giới); hearing drums in the fog, he empties Cao Cao’s quivers into Zhuge Liang’s (诸葛亮, Gia Cát Lượng) straw boats.

Chapter 73–76

  • Yu Jin (于禁, Vu Cấm): Flooded and captured by Guan Yu (关羽, Quan Vũ) at Fancheng—the collapse that undoes decades of stern reputation.

Chapter 79 (aftermath)

  • Yu Jin (于禁, Vu Cấm): Returned under Cao Pi (曹丕, Tào Phi); confronted with murals condemning his surrender, he sickens and dies in grief (221).

In History

Summary

  • Yu Jin (于禁, Vu Cấm), courtesy Wenze, was a senior Cao Cao general renowned for military law and endurance—later infamous for surrendering after the Han River flood at Fancheng.

Year: 190s–200s AD

  • Serves from Cao Cao’s Yanzhou base through Guandu and the northern wars; repeatedly praised for keeping troops in order.

Year: 219 AD

  • Commands against Guan Yu at Fan; autumn floods destroy his position; he surrenders. Pang De’s defiance in the same campaign becomes the foil to Yu Jin’s choice.

Year: 220–221 AD

  • After Cao Pi takes the throne and Guan Yu falls, Yu Jin is sent back; public humiliation follows; he dies of illness soon after (221).

Historical Record

  • Biography in Sanguozhi, Wei section (Yu Jin zhuan). Novel Red Cliffs naval cameo is literary staging; the Fancheng flood and disgrace are firmly historical.

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