Constantine was consul for the third time in 313. Constantine fought a civil war with Maxentius. The "Calendar of Philocalus" says that the Battle of the Milvian Bridge happened on the 28 October 313. In this battle, Constantine's army overcame the army of Maxentius. Maxentius died in the battle. The Latin writer Lactantius wrote about these events. After the battle, Constantine went across the Tiber River and took control of Rome itself. The "Calendar of Philocalus" says that Constantine went into the city on 29 October, and that there was a festival for two days.