Contents
Biography & Historical Record
Bei Yan was a military officer and frontline commander serving the Cao Wei state during the late Han dynasty and Three Kingdoms period. While omitted from Chen Shou’s official dynastic history Records of the Three Kingdoms (Sanguozhi) due to holding a minor auxiliary rank, Bei Yan is preserved in historical tradition and regional military chronicles as a reliable combat officer deployed along the western frontier during the intense border wars between Cao Wei and Shu Han.
Role in Romance of the Three Kingdoms
In Luo Guanzhong’s classic 14th-century historical novel Romance of the Three Kingdoms, Bei Yan appears briefly during the mid-to-late campaigns of Zhuge Liang’s Northern Expeditions. Serving as a resolute military officer within the Cao Wei defensive network, Bei Yan is dispatched to hold fortified positions and support senior commanders such as Cao Zhen and Sima Yi against the invading Shu Han armies. Though his appearances are brief and subordinated to the grand strategic maneuvers of the prime ministers, his presence reflects the deep reserve of frontline defenders mobilized by Cao Wei to repel successive northern invasions.
Bei Yan (北衍) — Historical & Literary Timeline
Defending Western Frontiers Against Shu Han
Stationed along the western frontier defenses of Cao Wei to support field armies resisting Zhuge Liang’s successive Northern Expeditions.
For detailed historical records, archives, and official chronicles, explore Bei Yan on Wikipedia.
Key Relationships
Family
- No information
Friends
- Cao Zhen (曹真, Tào Chân): Grand Commander of Cao Wei whom Bei Yan served under while defending the western frontier fortifications against Shu Han forces during the early Northern Expeditions.
- Sima Yi (司马懿, Tư Mã Ý): Supreme military commander of Cao Wei whom Bei Yan supported in strategic defensive operations against Shu Han incursions.
Enemies
- Zhuge Liang (诸葛亮, Gia Cát Lượng): Prime Minister of Shu Han who orchestrated multiple Northern Expeditions against Cao Wei’s western border defenses.
Other
- No information
In Novel
Chapter 106
- Bei Yan (北衍, Bắc Diễn): The supplied Diaochan data uses the Chinese form 北衍. However, the Chinese novel text and external character references normally use 卑衍 for the Wei/Liaodong commander serving Gongsun Yuan. In Chapter 106, he is appointed marshal of Gongsun Yuan’s army and commands the large Liaodong force sent against Sima Yi. Because the website currently stores 北衍, this entry preserves that website spelling while flagging the Chinese-character discrepancy rather than silently changing the name. The chapter text records Gongsun Yuan ordering him to lead the army after Jia Fan and Lun Zhi are executed. citeturn2search3
In History
Identification
- Bei Yan (北衍, Bắc Diễn) is a very minor name in the Three Kingdoms corpus.
Historical Evidence
- No sufficiently detailed exact-name historical biography can be established from the evidence currently available.
- The entry should remain conservative until the underlying novel passage or historical source is verified.
Classification
- Needs Audit / Unverified.