Toluid Civil War
Ariq Böke submits to Kublai at Shangdu, ending the Toluid Civil War
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Shangdu, 1264
Ariq Böke came to Kublai's court at Shangdu and submitted, ending their armed contest for the title of Great Khan. A Mongolian reference work dates the surrender to 21 August 1264.
The chronology is not settled: a recent Bulletin of SOAS study dates the submission to 1263, illustrating unresolved problems in the Persian and Chinese traditions.
Rashīd al-Dīn's account says Kublai received his brother emotionally — the two embraced, and Kublai acknowledged that blame for the conflict was not entirely one-sided.
Who was spared
A subsequent princely tribunal spared Ariq Böke and the royal princes who had supported him, while several non-royal commanders were executed.
Accounts disagree about what happened to him afterwards. Some modern summaries call it imprisonment or house arrest; the recent study based on Rashīd al-Dīn says he was returned to his patrimony after the trial and died of illness in 1266.
Recent scholarship cautions against treating him as merely an illegitimate pretender: he had backing from major members of Möngke's household and senior commanders.
Why he came
Ariq Böke did not simply lose a final battlefield showdown. After the Chaghatayid ruler Alghu defected, a severe winter and famine killed many of his animals, followers deserted, and he lacked the strength either to attack Alghu again or to return securely to Mongolia.
The surrender secured Kublai's claim to the qaghanate, but did not restore effective centralised control over the western Mongol khanates.
Sources
Researched 23 Aug 2026 4 sources not yet audited Date disputed
How this was checked
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Date disputed. Sources disagree; the research places it at 1264-08-21.
What the sources leave uncertain
- The commonly cited exact date is August 21, 1264—not August 24. A recent Bulletin of SOAS study dates the submission to 1263, illustrating unresolved chronological problems in the Persian and Chinese traditions.
- Early court histories were compiled from strongly pro-Kublai materials, while Rashīd al-Dīn’s treatment gives Ariq Böke more legitimacy than many other Persian authors.
- Accounts disagree over Ariq Böke’s confinement. Some modern summaries call it imprisonment or house arrest; the recent study based on Rashīd al-Dīn says he was returned to his patrimony after the trial and died of illness in 1266.