In AD 312, after the defeat of the emperor Maxentius at the battle of the Milvian bridge, the regiment was disbanded, along with the rest of the Praetorian Guard, by the emperor Constantine I (ruled 312-37). The unit may already have become redundant, if the "scholae", elite cavalry regiments escorting the emperor, had already been established by the emperor Diocletian (ruled 284-305). Alternatively, the "scholae" may have been founded by Constantine as a direct replacement for the "equites singulares".