Genghis Khan
Death of Genghis Khan during the Western Xia campaign
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Original prompt & settings (JSON) ↗One major chronicle says Genghis died on 18 August; another says that was the day his fatal fever began, and that he lived eight days more.
August 1227: two chronicles, two days
Genghis Khan died in August 1227 while campaigning against the Tangut Western Xia, his final military operation. The day is genuinely contested: Rashid al-Din's tradition gives 18 August as the date of death, while the History of Yuan places the onset of his final fever on the 18th and his death eight days later, on 25 August.
The best source-based description of the cause is an acute feverish illness. A 2021 medical paper argues for plague, but that is a retrospective hypothesis rather than a verified diagnosis, and rival traditions of a hunting fall, an infected wound or death in combat differ in date and reliability.
A death kept as a military secret
His death was concealed so the campaign would continue — the army pressed the siege while its supreme commander was already dead.
The listing's framing therefore misleads: Zhongxing, the Western Xia capital often identified with modern Yinchuan, capitulated the following month, not on the day Genghis died.
Two years to a successor
Tolui served as regent after his father's death rather than an heir taking power immediately. Ögedei was elected Great Khan at a kurultai in 1229, roughly two years later.
Even the place is uncertain: sources put Genghis in the Western Xia theatre, sometimes near the Jing River or the Liupan region.
Sources
Researched 23 Aug 2026 4 sources 3 audit passes Date disputed
How this was checked
Researched from the web into a fact sheet, rewritten from that sheet, then audited against it by a different model. How the pipeline works →
Date disputed. Sources disagree; the research places it at 1227-08.
What the sources leave uncertain
- Rashid al-Din gives 18 August 1227, while the History of Yuan says illness began on the 18th and death followed on the 25th.
- The exact location is also uncertain; sources place him in the Western Xia theater, sometimes near the Jing River or Liupan region.
- Illness, a hunting fall, an infected battle wound and death in combat come from differing traditions of unequal date and reliability.
- A 2021 medical paper argues for plague, but this is a retrospective hypothesis, not a verified diagnosis.