When rumours reached the capital that the emperors tried to subject the Roman population to the capitation tax, like every other city of the empire, and wanted to dissolve the remains of the Praetorian Guard which were still stationed at Rome, riots broke out. A group of officers of the city's garrisons (Zosimus calls them Marcellianus, Marcellus and Lucianus) turned to Maxentius to accept the imperial purple, probably judging that the official recognition which was granted to Constantine would not be withheld from Maxentius, son of an emperor as well. Maxentius accepted the honour, promised donations to the city's troops, and was publicly acclaimed emperor on October 28, 306. The usurpation obviously went largely without bloodshed (Zosimus names only one victim); the prefect of Rome went over to Maxentius and retained his office. Apparently the conspirators turned to Maximian as well, who had retired to a palace in Lucania, but he declined to resume power for the time being.