|
|
| 0293 | Blockade of Boulogne |  |
| Blockades Carausius ' fleet at Boulogne |
| Rome Blockades Carausius ' fleet at Boulogne |
| 0293 | Caesar |  |
| Appointed Caesar by Diocletian, his territory includes Gaul & Britain |
| Rome Appointed Caesar by Diocletian, his territory includes Gaul & Britain |
| 0293 | Governor |  |
| Dalmatia Appointed Governor of Dalmatia |
| 0293 | Prefect |  |
| Appointed Prefect of the Praetorian Guard |
| Rome Appointed Prefect of the Praetorian Guard |
| 0293 | Rebellion |  |
| Carausius Puts down a rebellion led by Admiral Carausius who controls northern Gaul & Britain |
| 0293 | Succession |  |
| Succeeds as Emperor of Rome, Emperor in the West |
| Rome Succeeds as Emperor of Rome, Emperor in the West |
| 0296 | Invasion of Britain |  |
| Sails to Britain with his Praetorian Prefect Asclepiodotus |
| 0305 | Succession |  |
| Succeeds as co-Emperor of the Western Roman Empire, includes Spain, Gaul & Britain |
| Rome Succeeds as co-Emperor of the Western Roman Empire, includes Spain, Gaul & Britain |
| 0306 | Death |  |
| 25th July York Death of Constantius I, at Eburacum, York |
| 0306 | Rule of Britain |  |
| Defeats the Picts |
| Rome Defeats the Picts |