As with other Bulanid rulers, it is unclear whether he was Khagan or Khagan Bek of the Khazars, although the latter is more likely. Historical authenticity and accuracy  of the only document mentioning his name has been questioned.
Like other Bulanid leaders, it is unclear whether he was Khagan or Khagan Bek of the Khazars, although the latter seems more probable. The historical accuracy and authenticity of the only document mentioning his name have been called into question.