Gaius Vettius Cossinius Rufinus (fl.
In 306 he was made proconsul of Achaea, but Maxentius' revolt in Rome prevented Rufinus from taking up the post, since Maxentius did not have jurisdiction in Achaea.
He was curator (i.e., official in charge of maintenance) of the via Flaminia, of the Tiber riverbed and of Rome's drains, corrector, or governor, of Regio X Venetia et Histria, the province of Diocletian that covered Tuscia Umbria and Campania, all under Maxentius.
[1] Wanting to gain the Roman Senate's support, Constantine honoured Rufinus despite his having been a supporter of his rival Maxentius and made him comes Augusti nostri (i.e., to Constantine's colleague in the east, Licinius).
Constantine was sure enough of Rufinus' loyalty that he sent him to the east under the authority of Licinius.