It was as governor of the province that
Septimius Severus made his bid for the Roman Imperial throne in April 193 CE. In 308 Emperor
Diocletian chaired a historic meeting with his co-emperors
Maximian and
Galerius in
Carnuntum, to solve the rising tensions within the
Tetrarchy. Diocletian and Maximian were both present on 11 November 308, to see Galerius appoint
Licinius to be
Augustus in place of
Valerius Severus, who had died at the hands of
Maxentius. Galerius ordered Maximian, who had attempted to return to power after his own retirement, to step down permanently. At Carnuntum people begged Diocletian to return to the throne, to resolve the conflicts that had arisen through
Constantine the Great's rise to power and Maxentius' usurpation. Diocletian's reply: "If you could show the
cabbage that I planted with my own hands to your emperor, he definitely wouldn't dare suggest that I replace the peace and happiness of this place with the storms of a never-satisfied greed." ==Cities==