CONSTANTIVS II REUNIFIES THE EMPIRE (A.D. 350-355)
Usurpations of Magnentius and Vetranio

 
The cities numbered in the map correspond to the mints of this period:
1 -  Treveri 2 -  Ambianum 3 -  Lugdunum 4 -  Arelate
5 -  Aquileia 6 -  Roma 7 -  Siscia 8 -  Sirmium
9 -  Thessalonica 10 -  Heraclea 11 -  Constantinopolis 12 -  Cyzicus
13 -  Nicomedia 14 -  Antiochia 15 -  Alexandria    

 

A.D. 350-353
Died Constans, the usurper Magnentius governs in Hispania, Britannia, Gallia and Italia, helped by his brother Decentius.


 

A.D. 350
Territories controlled by the usurper Vetranio (Pannonia and Illyria).


 

A.D. 350
Loyal provinces to the emperor Constantius II.


 

A.D. 353
Defeated Magnentius, Constantius II becomes the only Roman Emperor.
Pacified and reunified the Roman Empire, Constantius II named his cousin Julianus as Caesar (A.D. 355), sending him to Occident to govern the provinces of Hispania, Britannia and Galliae.