It had been a long-standing policy of the Roman legions and armies of occupation to utilize informers and spies, but never in an organized fashion. This was especially true in the city of Rome which was rife with whispers and endless conspiracies. Thefrumentarii were possibly established byDomitian,[2] although they only appear in records shortly after his reign in the early second century. When established, their base was located at theCastra Peregrina on theCaelian hill,[3] thoughTrajan would later centralize their location inRome.[4][5][6] During their early history, they were tasked with supplying grain to the military, delivering messages between the provinces and the empire,[7][8] and collectingtax money.[9][10][11][12]
They were sometimes callednomas ("nomads" in Latin) to protect their identity in enemy territory.
After the end of theFlavian Dynasty, thefrumentarii developed into a police force. They worked asnon-commissioned officers withpraetorian cohorts to police the populace.[13][14] This organization was part of the military, and its members werelegionaries.[15] Members of this group were recruited from the military.[16][17] By the 2nd century, the need for an empire-wide intelligence service was clear. But even an emperor could not easily create a new bureau with the express purpose of spying on the citizens of Rome's far-flung domains. A suitable compromise was found byHadrian.[18] He used thefrumentarii as a spying agency because their duties brought them into contact with enough locals and natives, allowing them to acquire considerable intelligence about any given territory. Alongside these duties they also may have overseen and guardedmining operations.[19][14][20]
They served assecret police and as anintelligence agency inancient Rome. Emperors would use them to gather information on friends, family, officials, or soldiers.[21][22] This organization was sometimes tasked with assassinating whomever the emperor wished.[18][23]Peasants disliked thefrumentarii due to false and arbitrary arrests. They were seen as a tyrannical "plague" on the empire.[24] These complaints lead to the disbandment of the organization in 312 AD during the reign ofDiocletian.[25][26][27] Thefrumentarii were replaced by theagentes in rebus.[28][29][30]
The following story has been used as evidence of the role of the frumentarii:[40]
[Hadrian's] vigilance was not confined to his own household but extended to those of his friends, and by means of his private agents (frumentarios) he even pried into all their secrets, and so skilfully that they were never aware that the Emperor was acquainted with their private lives until he revealed it himself. In this connection, the insertion of an incident will not be unwelcome, showing that he found out much about his friends. The wife of a certain man wrote to her husband, complaining that he was so preoccupied by pleasures and baths that he would not return home to her, and Hadrian found this out through his private agents. And so, when the husband asked for a furlough, Hadrian reproached him with his fondness for his baths and his pleasures. Whereupon the man exclaimed: "What, did my wife write you just what she wrote to me?".
Allen, George H. (1908). "The Advancement of Officers in the Roman Army".Supplementary Papers of the American School of Classical Studies in Rome.2:1–25.ISSN1940-0969.JSTOR4238491.
Bond, Sarah E. (2017). "The Corrupting Sea: Law, Violence and Compulsory Professions in Late Antiquity". In Ronald Kroeze; André Vitória; Guy Geltner (eds.).Anti-corruption in History: From Antiquity to the Modern Era. Oxford Academic.doi:10.1093/oso/9780198809975.003.0004.
Fuhrmann, Christopher J. (2016). "Police Functions and Public Order". In Paul J. du Plessis; Clifford Ando; Kaius Tuori (eds.).The Oxford Handbook of Roman Law and Society. Oxford Academic. pp. 297–309.doi:10.1093/oxfordhb/9780198728689.013.23.ISBN978-0-19-872868-9.
Fuhrmann, Christopher J. (2011). ""Military stations throughout all provinces": Detached-Service Soldier-Police".Policing the Roman Empire: Soldiers, Administration, and Public Order. Oxford Academic. pp. 201–238.doi:10.1093/acprof:oso/9780199737840.003.0008.ISBN978-0-19-973784-0.
Gilliam, J. F. (1976). "Canaliclarius and Kananiklarios (P.OXY. XL 2925)".The Bulletin of the American Society of Papyrologists.13 (2):49–52.ISSN0003-1186.JSTOR24518498.
Rankov, Boris (2012-10-26),"Agentes in rebus", in Bagnall, Roger S; Brodersen, Kai; Champion, Craige B; Erskine, Andrew (eds.),The Encyclopedia of Ancient History, Hoboken, NJ, USA: John Wiley & Sons, Inc., pp. wbeah19006,doi:10.1002/9781444338386.wbeah19006,ISBN978-1-4443-3838-6, retrieved2022-09-02
Rankov, N. B. (1990). "Frumentarii, the Castra Peregrina and the Provincial Officia".Zeitschrift für Papyrologie und Epigraphik.80:176–182.ISSN0084-5388.JSTOR20187218.
Thayer, Bill, ed. (1921)."Life of Hadrian".Historia Augusta (Transcription). Loeb. Retrieved2022-09-02 – via Penelope, The University of Chicago.
Tănase, Tiberiu; Muscalu, Bogdan (2013). "Viewpoints on Roman traditions in the history of intelligence services".History and civilization: EU strategy for the Baltic region. pp. 7–29.
Zuiderhoek, Arjan (2009). "Government Centralization in Late Second and Third Century a. d. Asia Minor: A Working Hypothesis".The Classical World.103 (1):39–51.ISSN0009-8418.JSTOR40599902.
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