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Usurper of the Western Roman Empire
Solidus Johannes-s4283.png
Joannes on a solidus.
Reign 20 November 423 – May 425, against Valentinian III
Died June or July 425
Place of death Aquileia

Ioannes, known in English as Joannes, was a Roman usurper (423–425) against Valentinian III.

On the death of the Emperor Honorius (August 15, 423), Theodosius II, the remaining ruler of the House of Theodosius hesitated in announcing his uncle's death. In the interregnum, Honorius's patrician at the time of his death, Castinus, elevated Joannes as emperor.


Joannes was a primicerius notariorum or senior civil servant at the time of his elevation. Procopius praised him as "both gentle and well-endowed with sagacity and thoroughly capable of valorous deeds."[1] Unlike the Theodosian emperors, he tolerated all Christian sects.

From the beginning, his control over the empire was insecure. In Gaul, his praetorian prefect was slain at Arles in an uprising of the soldiery there.[2] And Bonifacius, Comes of the Diocese of Africa, held back the grain fleet destined to Rome.[3]

"The events of Johannes' reign are as shadowy as its origins," writes John Matthews, who then provides a list of the ruler's known actions in a single paragraph. Joannes was proclaimed at Rome and praetorian games were provided at the expense of a member of the gens Anicia. Johannes then moved his base of operations to Ravenna, knowing full well that the Eastern Empire would strike from that direction. There is a mention of an expedition against Africa, but its fate, presumed unsuccessful, is unrecorded. In Gaul, he appears to have caused offense by submitting clerics to secular courts. And that is all.[4]

Joannes had hoped that he could come to an agreement with the Eastern Emperor, but when Theodosius II elevated the young Valentinian III, first to Caesar, then to co-emperor as an Augustus (undoubtedly influenced by Valentinian's mother Galla Placidia), he knew he could only expect war. Late in 424, he gave to one of his younger and most promising followers, Aëtius, an important mission. Aëtius, Governor of the Palace at the time, was sent to the Huns, with whom he had lived as a hostage earlier, to seek military help.[5]

While Aëtius was away, the army of the Eastern Empire left Thessalonica for Italy, and soon camped in Aquileia. Although the primary sources state that Ravenna fell to their assault – John of Antioch states that a shepherd led the army of Aspar safely through the marshes that protected the city[6]– Stewart Oost believes that Aspar's father, Ardaburius, who had been captured by Joannes' soldiers, convinced the garrison of Ravenna to betray the city.[7] The fallen emperor was brought to Aquileia where first his hand was cut off, then he was paraded on a donkey in the Hippodrome to the insults of the populace, then after further insults and injuries, he was finally decapitated in June or July 425.[8]

Three days after Joannes's death, Aëtius returned at the head of a substantial Hunnic army. After some skirmishing, Placidia, regent to her son, and Aëtius came to an agreement that established the political landscape of the Western Roman Empire for the next thirty years. The Huns were paid off and sent home, while Aetius received the position of magister militum (commander-in-chief of the Roman army).[9] The historian Adrian Goldsworthy writes that "it took a hard-fought campaign by strong elements of the East Roman army and navy, in addition to a fair dose of betrayal," to defeat Joannes.[10]


  1. ^ Procopius, De Bellus III.3.6. Translated by H.B. Dewing, Procopius (Cambridge: Loeb Classical Library, 1979), vol. 2 p. 25
  2. ^ Stewart Oost Galla Placidia Augusta: A biographical essay (Chicago: University Press, 1968), p. 186
  3. ^ Olympiodorus, fragment 40. Translated by C.D. Gordon, Age of Attila: Fifth Century Byzantium and the Barbarians (Ann Arbor: University of Michigan, 1966), pp. 44f
  4. ^ John Matthews, Western Aristocracies and Imperial Court AD 364 - 425 (Oxford: Clarendon Press, 1990), pp. 379f
  5. ^ Renatus Frigeridus, cited in Gregory of Tours, Decem Libri Historiarum, II.8; translated by Lewis Thorpe, History of the Franks (Harmondsworth: Penguin, 1974), pp. 118f
  6. ^ John of Antioch, fragment 195; translated by C.D. Gordon, Age of Attila, p. 47
  7. ^ Oost, Galla Placidia Augusta, pp. 188f
  8. ^ Procopius, III.3.9; translated by Dewing, pp. 75ff
  9. ^ Oost, Galla Placidia Augusta, pp. 189f
  10. ^ Adrian Goldsworthy, The Fall of the West: The Slow Death of the Roman Superpower, Orion Books Ltd, Paperback Edition 2010, London, pp. 305 and 436

External links[edit]

  • Hugh Elton, "Ioannes", from De Imperatoribus Romanis"
Political offices
Preceded by
Flavius Castinus,
Consul of the Roman Empire
with Flavius Theodosius Augustus and Flavius Placidus Valentinianus Caesar
Succeeded by
Flavius Theodosius Augustus,
Flavius Placidus Valentinianus Caesar

Original courtesy of Wikipedia: http://en.wikipedia.org/wiki/Joannes — Please support Wikipedia.
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854 news items

Green Bay Press Gazette
Sat, 05 Jul 2014 13:26:15 -0700

The NEW Pride: PrideAlive event is set for 11 a.m.-10 p.m. July 12 at Joannes Park, 205 S. Baird St. It will feature live stage entertainment, celebrity guests, the Northeast Wisconsin LGBT History Project, exhibits, local vendors, demonstrations ...
Green Bay Press Gazette
Sat, 12 Jul 2014 15:46:36 -0700

The couple celebrated the commemoration of their vows Saturday at Joannes Park, along thousands of minority members and their allies for Pride Alive, an annual Green Bay festival that celebrates the lesbian, gay, bisexual and transgender community.
Green Bay Press Gazette
Thu, 24 Jul 2014 21:22:34 -0700

Nathan Disch fired six scoreless innings, allowing three hits with a season-high eight strikeouts to earn the win at Joannes Stadium. The Bullpen gave up only two hits in the final three innings. Dean Long went 2-for-3 with a run scored and Ryan Howell ...
La Crosse Tribune
Fri, 25 Jul 2014 21:18:45 -0700

GREEN BAY — The La Crosse Loggers' second-half swoon continued Friday night as Green Bay outslugged La Crosse 10-8 in a Northwoods League game played before 1,602 fans at Joannes Stadium. It was the Loggers seventh consecutive defeat, ...
Malaysia Chronicle
Sat, 26 Jul 2014 16:59:29 -0700

“Now, there are probably a million foreigners who gained Malaysian citizenship through the back door,” wrote Nestor Joannes. He was quoting a former Sandakan district officer, Asainar M.P. Ebrahim @ Hassnar, who claimed to have been involved in “Projek ...

The Pilot

The Pilot
Fri, 25 Jul 2014 06:18:45 -0700

When Joannes Hoffer, a 17th century Swiss doctor, first invented the term, he described nostalgia as a "neurological disease of demonic cause." In later centuries, physicians and researchers associated nostalgia with depression, "immigrant psychosis ...
Packers.com (blog)
Fri, 25 Jul 2014 07:37:15 -0700

At the time, the Packers would typically report to Green Bay, practice for a week, usually in Joannes Park, play a non-league opponent from a nearby city and start their NFL schedule the following week. Over the next 16 years, Lambeau would play six ...
The Herald | HeraldOnline.com (press release)
Thu, 24 Jul 2014 00:30:00 -0700

Joannes Vermorel, founder of Lokad, an app development partner says: "Since developing and making Salescast (an inventory optimization app) and Priceforge (a pricing optimization app) available via the Brightpearl App Store, market response from the ...

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