Arthur Miller, Dictionary of National Biography… (1885)
“ He describes Ambrosius as ‘courteous, faithful, valiant, and true; a man of Roman birth who had alone survived the conflict, his kindred, who had worn the purple, having perished in the struggle; his descendants, greatly degenerated in these days from the excellence of their ancestors, still provoke their conquerors to battle, and by the grace of God their prayers for victory are heard.’ Geoffrey of Monmouth and other later writers represent Ambrosius as the son of Constantine, who was elected emperor in Britain, Gaul, and Spain during the reign of the Emperor Honorius ”
