Jovinus was a Gallo-Roman senator and claimed to be Roman Emperor (411 - 413). Following the defeat of the usurper known with the name of Constantine III, Jovinus was proclaimed emperor at Mainz in 411, a puppet supported by Gundahar, king of the Burgundians, and Goar, king of the Alans. Jovinus kept his position in Gaul for two years, long enough to issue coinage that showed him wearing the imperial diadem. Wikipedia
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