Constantine III
(Flavius Claudius) [Na]
Roman emperor who was proclaimed by the army in Britain in ad 407 and who crossed to Gaul where he founded an independent Gallic empire based on the southern French town of Arles. His usurpation was legitimized in 409 by Honorius who was hard pressed by the Visigoths. However, Alaric's death allowed the Roman authorities to defeat and kill Constantine and disperse his followers. He died c.ad 411.



