Jamukha was born into the Jadaran tribe, a sub-tribe within the
Khamag Mongol confederation. He was also an
anda, a sworn brother, to Temüjin. According to
The Secret History of the Mongols, when
Börte, wife of Temüjin, and
Sochigel, his step-mother, were abducted by the
Three Merkits,
Wang Khan, Jamukha, and Temüjin combined forces against the Merkits to recover both women. In 1201, the leaders of thirteen tribes hostile to Temüjin (including the
Merkits,
Tatars,
Naimans, Jamukha's own Jadaran tribe, the
Taichuud, and others not allied with Temüjin) assembled a
kurultai. They elected Jamukha as
Gur-khan (
universal ruler), a title previously used by the rulers of the
Kara-Khitan Khanate. Jamukha's assumption of this title represented the final breach between him and Temüjin, leading Temüjin to form a coalition to oppose him. In the fall of that year, a major battle broke out between Jamukha's alliance and the
Keraite-Khamag Mongol alliance in the
Ergune valley. This decisive engagement, known as the
Battle of the Thirteen Sides, ended with Temüjin's victory, significantly advancing his path towards eventually becoming Khan of all united Mongol tribes (an event formalised in 1206). Jamukha was ultimately less successful than Temüjin in building a broad and resilient coalition. For example, Jamukha tended to rely on traditional tribal aristocracy and did not actively recruit commoners or shepherds who lacked high tribal status. In contrast, Temüjin's willingness to promote based on merit and loyalty attracted a wider following, allowing him to recover from earlier military setbacks (some inflicted by Jamukha himself) and eventually emerge victorious. Following the
Battle of the Thirteen Sides, Jamukha was betrayed and captured by his own men, who submitted him to the victorious Temüjin. Citing one of the laws Temüjin had established (often associated with the later Yassa code), which forbade the betrayal of one's Khan, Temüjin had Jamukha's betrayers immediately executed. Jamukha himself was subsequently interrogated. Offered the choice to live and join Temüjin, he requested instead to die honorably at the hands of his
anda. Temüjin granted this request, and Jamukha was executed according to noble tradition, "without spilling blood". == In popular culture ==