I. Archaeological Monuments
Augusta Treverorum was founded around 17 bce under Emperor Augustus, on the site of the main settlement of the tribe of the Treveri; it soon prospered by virtue of favorable road links and its situation on the Moselle River. Trier was an imperial residence under Emperor Constantius Chlorus and his son Constantine the Great (i.e. from about 285 to 312), and again under Valentinian I and Grat…