Sima Yue
Biography & Historical Record
Sima Yue (司马越, Tư Mã Việt / Prince of Gaomi) was an imperial prince of Western Jin. He was a son of Sima Fu (司马孚, Prince of Anping). In Cao Wei, he served in noble military and court appointments before being elevated to Prince of Gaomi (高密王) following the establishment of the Western Jin dynasty in 265 CE by Sima Yan.
Governing the coastal commanderies of Gaomi and Qingzhou, Sima Yue supported the central Jin administration and maintained border stability. His branch of the family continued through his heirs, preserving Sima Fu’s lineage in the eastern provinces.
Role in Romance of the Three Kingdoms
Chapter 120 (The unified realm): The empire united under the Jin banner saw the descendants of Sima Fu entrusted with the bulwarks of the realm. Sima Yue guarded the eastern sea borders with devotion to the ancestral code of honour.
Sima Yue — Historical & Literary Timeline
265 AD
Enfeoffed as Prince of Gaomi
Created Prince of Gaomi upon Emperor Wu’s coronation, establishing an imperial prince estate in Qingzhou.
c. 280 AD
Eastern Regional Stability
Maintains civil and defense preparations in Gaomi as the dynasty achieves total unification.
Key Relationships
Family
- Sima Fu (司马孚, Tư Mã Phu) — Father; Grand Tutor and Prince of Anping.
- Sima Yi (司马懿, Tư Mã Ý) — Uncle; founder of Sima authority.
- Sima Yong (司马邕, Tư Mã Ung) — Brother; primary heir of Sima Fu.
- Sima Huang (司马晃, Tư Mã Hoảng) — Brother; Prince of Xiapi.
Friends / Allies
- Sima Yan (司马炎, Emperor Wu of Jin) — Sovereign and cousin who enfeoffed Sima Yue as Prince of Gaomi.
Enemies / Rivals
- Border Brigands & Coastal Pirates — Threats pacified under his regional administration in Gaomi.
Other
- Sima Zhao (司马昭, Tư Mã Chiêu) — Cousin; regent of late Wei.
In Novel
Chapter 120 (Peace throughout the provinces)
- Sima Yue (司马越, Tư Mã Việt): Across the lands stretching to the Eastern Sea, the princes of the Sima clan held the cities in firm allegiance to the throne in Luoyang.
Chapter 120 (The dynastic triumph)
- Sima Yue (司马越, Tư Mã Việt): The bloodline of Sima Fu governed with righteousness, standing as pillars of loyalty across the Three Kingdoms' former territories.
In History
Summary
- Sima Yue (司马越) was a son of Sima Fu who was created Prince of Gaomi in Western Jin. He managed his principality in the coastal northeast, carrying forward his father's lineage.
Year: 265 AD
- Enfeoffed as Prince of Gaomi by Emperor Wu of Jin following the dynastic change from Cao Wei.
Historical Record
- Jin Shu, Vol. 37 (Biography of Sima Fu): Lists Sima Fu's sons and their respective principalities, including Sima Yue, Prince of Gaomi.

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