(Σωφηνή/Sōphēnḗ; Byzantine also Τζοφηνή/Tzophēnḗ). Region to the east of the Euphrates, opposite the Melitene and to the north of Commagene, Urartian Ṣūpā, Assyrian Ṣuppu; Syrian and Armenian documentation. S. was often administratively linked with Sophanene to the east. Geographically S. was usually considered part of Armenia. Kings of S. are documented from the 2nd cent. BC until 54 AD (Tac. Ann. 13,7).
L. Dillemann, Haute Mésopotamie Orientale et pays adjacents, 1962, 116-124
F. H. Weissbach, s. v. S., RE …