Eastern Roman
The Byzantine Empire, also referred to as the Eastern Roman Empire or Byzantium, was the continuation of the Roman Empire primarily in its eastern provinces during Late Antiquity and the Middle Ages, when its capital city was Constantinopl ...
military commander whose recorded career flourished in the
Caucasus
The Caucasus () or Caucasia (), is a region between the Black Sea and the Caspian Sea, mainly comprising Armenia, Azerbaijan, Georgia, and parts of Southern Russia. The Caucasus Mountains, including the Greater Caucasus range, have historically ...
region c. 369–374. He served the Roman Emperor
Valens
Valens ( grc-gre, Ουάλης, Ouálēs; 328 – 9 August 378) was Roman emperor from 364 to 378. Following a largely unremarkable military career, he was named co-emperor by his elder brother Valentinian I, who gave him the eastern half of ...
as ''comes rei militaris'' (military commander), most notably in the East.
Terentius first appears as ''
dux
''Dux'' (; plural: ''ducēs'') is Latin for "leader" (from the noun ''dux, ducis'', "leader, general") and later for duke and its variant forms (doge, duce, etc.). During the Roman Republic and for the first centuries of the Roman Empire, ''dux' ...
'' in undated tiles from
Aquincum
Aquincum (, ) was an ancient city, situated on the northeastern borders of the province of Pannonia within the Roman Empire. The ruins of the city can be found today in Budapest, the capital city of Hungary. It is believed that Marcus Aurelius w ...
comes
''Comes'' ( ), plural ''comites'' ( ), was a Roman title or office, and the origin Latin form of the medieval and modern title "count".
Before becoming a word for various types of title or office, the word originally meant "companion", either i ...
'' and ''dux'', being in command of the expedition that reinstated Pap as
king of Armenia
This is a list of the monarchs of Armenia, for more information on ancient Armenia and Armenians, please see History of Armenia. For information on the medieval Armenian Kingdom in Cilicia, please see the separate page Armenian Kingdom of Cilicia.
...
in 370. That same year, with twelve legions Terentius helped Sauromaces to reclaim the throne of
Iberia
The Iberian Peninsula (),
**
* Aragonese and Occitan: ''Peninsula Iberica''
**
**
* french: Péninsule Ibérique
* mwl, Península Eibérica
* eu, Iberiar penintsula also known as Iberia, is a peninsula in southwestern Europe, defi ...
from Aspacures, Sauromaces' cousin and a
Sasanian
The Sasanian () or Sassanid Empire, officially known as the Empire of Iranians (, ) and also referred to by historians as the Neo-Persian Empire, was the last Iranian empire before the early Muslim conquests of the 7th-8th centuries AD. Named ...
client. In 373 or 374 Terentius urged the emperor
Valens
Valens ( grc-gre, Ουάλης, Ouálēs; 328 – 9 August 378) was Roman emperor from 364 to 378. Following a largely unremarkable military career, he was named co-emperor by his elder brother Valentinian I, who gave him the eastern half of ...
to replace Pap with a more amenable person in order to prevent Armenia from falling into Sasanian hands and, subsequently, lost Pap's confidence. In 375, Terentius appears retired and residing at
Antioch
Antioch on the Orontes (; grc-gre, Ἀντιόχεια ἡ ἐπὶ Ὀρόντου, ''Antiókheia hē epì Oróntou'', Learned ; also Syrian Antioch) grc-koi, Ἀντιόχεια ἡ ἐπὶ Ὀρόντου; or Ἀντιόχεια ἡ ἐπ ...
. It is not clear whether Terentius is the same commander mentioned in 373 as attacking the
Albanians
The Albanians (; sq, Shqiptarët ) are an ethnic group and nation native to the Balkan Peninsula who share a common Albanian ancestry, culture, history and language. They primarily live in Albania, Kosovo, North Macedonia, Montenegro, Se ...
and Iberians.
Terentius was a devoted
Christian
Christians () are people who follow or adhere to Christianity, a monotheistic Abrahamic religion based on the life and teachings of Jesus Christ. The words ''Christ'' and ''Christian'' derive from the Koine Greek title ''Christós'' (Χρι ...
. When asked by Valens what reward he would choose for his services, Terentius requested—to the emperor's ire—that a church be given for the use of the orthodox Christians. His daughters were nuns at
Samosata
Samsat ( ku, Samîsad), formerly Samosata ( grc, Σαμόσατα) is a small town in the Adıyaman Province of Turkey, situated on the upper Euphrates river. It is the seat of Samsat District.