Trier (; Luxembourgish Tréier) is a city in Germany on the banks of the Moselle River. It is the oldest city in Germany, founded in or before 16 AD.http://redaktion.trier.de/praefectus/trier?tourist_en Website of the Municipality of Trier Trier is not the only city claiming to be Germany's oldest, but it is the only one that bases this assertion on having the longest history as a city, as opposed to a mere settlement or army camp.