The Khagans were supreme chiefs of the people, holding positions of much influence and spiritual authority, but with little day-to-day command.
[1] The Cäğfär Taríxı purports to be a compilation of early Bulgar historical material, assembled (or at least written in its present form) in the late 17th century.
The historicity of the people that it refers to is therefore questionable, so until additional documentation comes to light, Khalga and Kaban should be regarded warily at best.
The Khagan Beks were war chiefs, military commanders who exercised considerable day-to-day authority, and were sometimes regarded by outsiders as the supreme lords of the Khazar nation.
[17] According to some sources the majority may have gone to Hungary,[18] Poland and the Crimea, mingling with Jews in those areas and with later waves of Jewish immigrants from the west.