of 1250 and 1251. The Ögedeid candidate for Great Khan, Shiremun, and his cousin Nakhu, were embittered by their loss and plotted a failed assassination of Möngke. Möngke took revenge by purging his opponents in the royal house, and members of both the Chagatai and Ögedei families.

Möngke handed control over the Caucasus region to the Golden Horde in 1252. With the approval of Möngke, Berke succeeded