Allectus
Allectus (died AD 296) was a Roman financial official (rationalis) under the usurper Carausius who assassinated his superior in AD 293 and seized control of Britain and parts of northern Gaul, establishing himself as emperor in a breakaway regime against the Tetrarchy.[1][2]
His three-year rule involved minting extensive coinage to assert legitimacy, including types depicting naval themes inherited from Carausius, and efforts to consolidate power amid economic strain from prior usurpation.[3][4]
Allectus' regime collapsed in AD 296 when Caesar Constantius Chlorus, with praetorian prefect Asclepiodotus, invaded from Gaul; Allectus was defeated and killed near Silchester (Calleva Atrebatum), restoring imperial control over Britain.[5][6] This event marked the end of the Carausian revolt, though archaeological evidence like the Beaurains hoard attests to the campaign's significance in reasserting Tetrarchic authority.[1]