353 — Martinus, Vicarius of Britain, “killed” by Constantine II.
364 — Valentinian I, Emperor of the West. Picts, Scots, Attacotti and Saxons raiding Britain.
367 — Picts, Scots, Attacotti and Saxons, in conspiracy, overwhelm the Wall and over-run Britain.
Fullofaudes, Duke of Britain, and Nectaridus, Count of the Saxon Shore, slain.
368 — Count Theodosius, sent by Valentinian I, reconquers Britain and restores the Wall.
375 — Death of Valentinian I.
Valentinian II and Gratian, Emperors of the West.
378 — Battle of Adrianople.
379 — Reign of Theodosius I.
383 — Magnus Maximus, military commander, acclaimed emperor in Britain; conquers Spain and Gaul from Gratian who is killed.
388 — Magnus Maximus defeated by Theodosius I, and executed.
395 — Death of Theodosius I.
Honorius, aged 11, Emperor of the West: Stilicho, the Vandal, appointed his guardian.
? — Stilicho improves the defences of Britain and withdraws some troops.
403 — Alaric, the Goth, invades Italy.
406 — Stilicho defeats Radagaisus who invades Italy.
Constantinus proclaimed emperor in Britain.
Coalition of Marcomanni, Quadi, Asding and Siling Vandals, cross the Rhine at Mainz and over-run Gaul.
407 — Alemanni sack Worms and annexe the right bank of the Rhine.
Constantinus, with his son Constans, crosses to Gaul with the last remaining troops in Britain, and establishes himself at Arles.
408 — Stilicho murdered at instigation of Honorius.
410 — Rome sacked by Alaric: Honorius bids the Britons look to themselves.
411 — Constans and Constantinus killed by Honorius’ troops.