Like many titles, Tarkhan also occurs as a personal name, independent of a person's rank, which makes some historical references confusing. For example, Arabic texts refer to a "Tarkhan, king of the Khazars" as reigning in the mid ninth century. Whether this is a confused reference to a military official or the name of an individual Khazar khagan remains unclear. The name is occasionally used today in Turkish and Arabic speaking countries. It is used as family name in Hungary today.