Julius Asclepiodotus was a Roman praetorian prefect who, according to the Historia Augusta,[1] served under the emperors Aurelian, Probus and Diocletian,[2] and was consul in 292.
Allectus, having assassinated Carausius in 293, remained in control of Britain until 296, when Constantius staged an invasion to retake the island.
Some of Constantius's troops, who had been separated from the main body by the fog during the channel crossing, caught up with the remnants of Allectus's men at London and massacred them.
The Romans eventually surrender on condition of safe conduct out of Britain, which Asclepiodotus is willing to grant, but his allies the Venedoti attack them and cut off their heads, which are thrown into the river Gallobroc.
However, his rule is contemporary with the persecutions of Christians under Diocletian, and Geoffrey places the martyrdom of Saint Alban at this time.