Constantine the Great
On 27 September 315 Constantine went away from Rome. There was another ceremony (a ) when Constantine went out of the city. At some time, Constantine fought a civil war with his co-emperor Licinius. The Calendar of Philocalus says that Constantine's army overcame Licinius's army at the Battle of Cibalae on 8 October 314, but historians are not in agreement about the date. It may have been in 316. After this civil war, Constantine and Licinius made peace. This was either at the end of 314 or in January 317. As part of the agreement, Constantine got from Licinius the Roman provinces next to the Danube. (Licinius kept Thracia however.)