Hashteank

Hashteank' (Հաշտեանք) was a historic canton of Armenia, in the province of Sophene. Called Asthianene (Greek: Ἀσθιανήνη) by the Greeks and Romans, it consisted of what is now the Bingöl plain, near the sources of the Tigris. The district of Khordzean (Greco-Roman Chorzene or Chorzanene), centered on Kiği (Armenian Kogoberd), was generally politically subordinate to Hashteank. Hashteank was primarily a rural district, with larger towns at Bingöl and Genç.

The Byzantine fortress of Citharizum, which was of great strength and was built by Justinian, was in the province.