Matiene was the name of a kingdom in northwestern Iran[1][2] on the lands of the earlier kingdom of the Mannae. Ancient historians including Strabo, Ptolemy, Herodotus, Polybius, and Pliny mention names such as Mantiane, Martiane, Matiana, Matiani, Matiene, Martuni to designate a region located to the northwest of Media."[3][4]
^The Cambridge history of Iran, Volume 2 by William Bayne Fisher, Ilya Gershevitch, Ehsan Yar-Shater, Peter Avery, pages 256-257
^Archaeology at the north-east Anatolian frontier, I.: an historical geography and a field survey of the Bayburt Province by A. G. Sagona, Claudia Sagona, pages 41-48