Antoninus () was a member of the Household Cavalry under Emperor

Constantius II Constantius II (; ; 7 August 317 – 3 November 361) was Roman emperor from 337 to 361. His reign saw constant warfare on the borders against the Sasanian Empire and Germanic peoples, while internally the Roman Empire went through repeated civ ...

, and later an advisor to the

Sasanian The Sasanian Empire (), officially Eranshahr ( , "Empire of the Iranians"), was an Iranian empire that was founded and ruled by the House of Sasan from 224 to 651. Enduring for over four centuries, the length of the Sasanian dynasty's reign ...

king (

shah Shāh (; ) is a royal title meaning "king" in the Persian language.Yarshater, Ehsa, ''Iranian Studies'', vol. XXII, no. 1 (1989) Though chiefly associated with the monarchs of Iran, it was also used to refer to the leaders of numerous Per ...

)

Shapur II Shapur II ( , 309–379), also known as Shapur the Great, was the tenth King of Kings (List of monarchs of the Sasanian Empire, Shahanshah) of Sasanian Iran. He took the title at birth and held it until his death at age 70, making him the List ...

. He played a key role in providing

intelligence Intelligence has been defined in many ways: the capacity for abstraction, logic, understanding, self-awareness, learning, emotional knowledge, reasoning, planning, creativity, critical thinking, and problem-solving. It can be described as t ...

to the shah, culminating in the

sack A sack usually refers to a rectangular-shaped bag. Sack may also refer to: Bags * Flour sack * Gunny sack * Hacky sack, sport * Money sack * Paper sack * Sleeping bag * Stuff sack * Knapsack Other uses * Bed, a slang term * Sack (band), ...

Amida Amida can mean : Places and jurisdictions * Amida (Mesopotamia), now Diyarbakır, an ancient city in Asian Turkey; it is (nominal) seat of: ** The Chaldean Catholic Archeparchy of Amida ** The Latin titular Metropolitan see of Amida of the Ro ...

in 359 AD.

Life

Ammianus Marcellinus Ammianus Marcellinus, occasionally anglicized as Ammian ( Greek: Αμμιανός Μαρκελλίνος; born , died 400), was a Greek and Roman soldier and historian who wrote the penultimate major historical account surviving from antiquit ...

is the only source on Antoninus: :"There was a certain Antoninus, at first a rich merchant, then an accountant in the service of the governor of

Mesopotamia Mesopotamia is a historical region of West Asia situated within the Tigris–Euphrates river system, in the northern part of the Fertile Crescent. Today, Mesopotamia is known as present-day Iraq and forms the eastern geographic boundary of ...

, and finally one of his body-guard, a man of experience and sagacity." Ammianus then goes on to describe how Antoninus had been mistreated by the imperial authorities of

. Having grown tired of losing property and wealth to corruption, Antoninus decided to become turncoat. After contacting the

authorities, he crossed the

Tigris The Tigris ( ; see #Etymology, below) is the eastern of the two great rivers that define Mesopotamia, the other being the Euphrates. The river flows south from the mountains of the Armenian Highlands through the Syrian Desert, Syrian and Arabia ...

river and joined the Sasanians. Antoninus later met Ursicinus in the turn of events leading to the siege of Amida. Ammianus (who was present) noted how Antoninus had come to adopt the dress and customs of the Sasanian

court A court is an institution, often a government entity, with the authority to adjudicate legal disputes between Party (law), parties and Administration of justice, administer justice in Civil law (common law), civil, Criminal law, criminal, an ...

. There is nothing else known about Antoninus' life, aside from the high position in the court of

. This may in part have been because he spoke both

Greek Greek may refer to: Anything of, from, or related to Greece, a country in Southern Europe: *Greeks, an ethnic group *Greek language, a branch of the Indo-European language family **Proto-Greek language, the assumed last common ancestor of all kno ...

and

Latin Latin ( or ) is a classical language belonging to the Italic languages, Italic branch of the Indo-European languages. Latin was originally spoken by the Latins (Italic tribe), Latins in Latium (now known as Lazio), the lower Tiber area aroun ...

References

{{reflist Year of birth unknown Year of death unknown 4th-century Romans Defectors People of the Roman–Sasanian Wars People from the Sasanian Empire Shapur II