caption death_date religion title image article_title name reign
coin of constantine iii . 411 -lrb- before 18 september -rrb- nicene christianity co-emperor of the western roman empire constantineiii.jpg constantine iii -lrb- western roman emperor -rrb-
 constantine iii usurper ambrosius aurelianus -lrb- legend -rrb- 407 -- 409 -lrb- against emperor honorius -rrb-
constantine iii -lrb- western roman emperor -rrb-

flavius claudius constantinus , known in english as constantine iii -lrb- died 411 by 18 september -rrb- was a roman general who declared himself western roman emperor in britannia in 407 and established himself in gaul .
recognised by the emperor honorius in 409 , collapsing support and military setbacks saw him abdicate in 411 .
he was captured and executed shortly afterwards .
