The reconquest of Britain begins in 296.

With Maximian holding the Rhine frontier, Constantius divides his fleet into several divisions.

He leads one division himself from Bononia; another, sailing from Le Havre, is commanded by Asclepiodotus, prefect of the Praetorian Guard.

They land in the vicinity of Southampton and burn their ships.

The rebels are forced to retreat from the coast, but in doing so, fall into the hands of another division and are routed.

Allectus himself is killed in the battle, having removed all insignia in the hope that his body would not be identified.

A group of Roman troops, who had been separated from the main body by the fog during the channel crossing, catches up with the remnants of Allectus's men, mostly Franks, at Londinium (London), and massacres them.

Constantius himself, it seems, does not reach Britain until it is all over, and the panegyrist claims he was welcomed by the Britons as a liberator.