Argentoratum

ARGENTORATUM or ARGENTORATUS (Ammian. 15.11: Strassbury on the Rhine), is first mentioned by Ptolemy. The position is well ascertained by the Itineraries. It has the name of Stratisburgium in the Geographer of Ravenna and Strataburgum in the Notitia. Nithard, who wrote in the ninth century (quoted by D'Anvilie and others), speaks of it as having once the name of Argentaria nunc autem Stratzburg vulgo dicitur;b ut he is probably mistaken in giving it the name of Argentaria instead of Argentoratum. [AROENTARIA.] Zosimus (3.3) calls the place Ἀργέντωρ. It was originally a town of the Tribocci. The Romans had a manufactory of arms at Argentoratum; and Julian defeated the Alemanni here. (Amm. Marcell. 16.12.)

The modern city of Strasburg; a Roman municipium in Gallia Belgica, on the Rhine. The Romans had a manufactory of arms here; and here, also, the emperor Julian defeated the Alemanni. In the sixth century we find it called Stratisburgium, whence comes the modern name.