Hoelun from the Mongolian tribe
Ongirad was supposed to marry a
Merkit warrior called Chiledu, but
Yesugei Baghatur from the
Kiyad Khanate abducted Hoelun while she was traveling from Ongirad to Merkit. This event triggered hostilities between the Merkit & Kiyad tribes,
Temüjin Borjigin was born from the marriage between Hoelun & Yesugei. When Temüjin became 16 years old he married
Börte Ujin from the
Kongirat tribe, the Merkits took revenge by abducting Börte when Temüjin was 18. Temüjin formed an alliance with his blood brother
Jamuha and his foster-father
Toghril, the Merkits were defeated by the alliance which Temüjin had formed and his wife Börte was reclaimed.
Jochi supposedly was born shortly after Börte was liberated and
Genghis Khan always accepted Jochi as his first born son, but to some it remained uncertain whether Temüjin Borjigin or
Chilger Boke was the real father of Jochi. As Genghis Khan’s first born son, Jochi was favored as rightful heir to the
Mongolian empire. It was
Chagatai who brought up the dispute of Jochi’s illegitimacy, but Genghis Khan remained determined that Jochi was his legitimate first born son. It was when Genghis named
Ögedei as his rightful successor that Jochi rebelled against his father, Chagatai and Ögedei were sent against Jochi who died in February
1227 before it came to any hostilities. Jochi’s descendants were the oldest branch of the
Genghis Khan family, although they were not favored for succession by other rivaling family members.