Johannes Emperor (usurper) of the Roman Empire from 423 AD to 425 AD.
Iohannes Augustus was a Roman usurper (423–425) against Valentinian III.

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

Joannes had hoped that he could come to an agreement with the Eastern Emperor, but when Theodosius II elevated Valentinian III to co-emperor, he knew he could only expect war.

When Ravenna was besieged, Johannes was betrayed by the garrison, captured, tortured, humiliated, and finally decapitated.
Johannes
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An AE Nummus struck 423-425 in Rome
Obverse: (DN IOHAN-NES PF AVG), pearl-diademed, draped and cuirassed bust right

Reverse: VICTOR-IA AVGG, Victory walking left, holding wreath and palm, Epsilon in left field

Diameter: 10 mm
Die Orientation: -
Weight: 1.5 g
Mintmark is off flan
RIC X 1910
/Files/Images/Coinsite/CoinDB/319-3.jpg
An AE Nummus struck 423-425 in Rome
Obverse: DN IOHANN-ES PF AVG, Pearl-diademed, draped and cuirassed bust right

Reverse: SALVS REI-PVBLICAE, Victory walking left, holding trophy over shoulder and dragging captive. Epsilon in left field

Diameter: 12 mm
Die Orientation: -
Weight: 1 g
No notes for this coin
RIC x 1916, Sear 21121