Its greatest ruler was Oz Beg, and his death in 1341 marked the beginning of its decline.  
Created as the territorial endowment of the descendents of Juchi, its capital was originally Sarai Batu, and later Sarai Berke. Its greatest ruler was Oz Beg, and his death in 1341 marked the beginning of its decline.  For ten points, what is the better known name of the Kipchak Khanate, the Mongol state centered around the lower Volga river?
Created as the territorial endowment of the descendents of Juchi, its capital was originally Sarai Batu, and later Sarai Berke.
Golden Horde