With so many emperors now in existence, …
Years: 308 - 308
November
With so many emperors now in existence, Galerius, together with the retired emperor Diocletian and the now active Maximian, calls an imperial 'conference' at Carnuntum on the River Danube to rectify the situation and bring some order back into the imperial government in 308.
(The altar to Mithra set up by them is an important historical source.)
Here, on November 11, it is agreed that Galerius’ longtime friend and military companion Valerius Licinianus Licinius, a soldier born of Illyrian peasant stock, who had been entrusted by Galerius with the defense of the Danube while Galerius had pursued his unsuccessful invasion of Italy, will become Augustus in the West, with Constantine as his Caesar.
In the East, Galerius remains Augustus and Maximinus remains his Caesar.
Maximian is to retire, and Maxentius is declared a usurper.
For now, Licinius must content himself with ruling Pannonia.
Five self-proclaimed emperors—Constantine, Galerius, Maxentius, Licinius, and Maximinus—now rule different parts of the empire, ridden with plots and intrigues.
