The Principality of Ushrusana was a local dynasty ruling the Ushrusana region, in the northern area of modern Tajikistan, from an unknown date to 892 CE. Ushrusana, just like Ferghana, did not belong to Sogdia proper, but its inhabitants wrote in Sogdian, and may have spoken the Sogdian language as well. The rulers of the principality were known by their title of Afshin.

The Kidarites, or Kidara Huns, were a dynasty that ruled Bactria and adjoining parts of Central Asia and South Asia in the 4th and 5th centuries. The Kidarites belonged to a complex of peoples known collectively in India as the Huna, and in Europe as the Chionites, and may even be considered as identical to the Chionites. The 5th century Byzantine historian Priscus called them Kidarite Huns, or "Huns who are Kidarites". The Huna/Xionite tribes are often linked, albeit controversially, to the Huns who invaded Eastern Europe during a similar period. They are entirely different from the Hephthalites, who replaced them about a century later.