Trier formerly known in English as Treves (French: Trèves, IPA: [tʁɛv]), is a city in Germany on the banks of the Moselle. Trier lies in a valley between low vine-covered hills of red sandstone in the west of the state of Rhineland-Palatinate, near the border with Luxembourg and within the important Moselle wine region. Founded by the Romans in the late 1st century BC as Augusta Treverorum (Latin for "The City of Augustus among the Treveri"), Trier may be the oldest city in Germany. It is also the oldest seat of a bishop north of the Alps. In the Middle Ages, the Archbishop of Trier was an important prince of the church, as the Archbishopric of Trier controlled land from the French border to the Rhine. The Archbishop also had great significance as one of the seven electors of the Holy Roman Empire.
With an approximate population of 105,000, Trier is the 4th-largest city in its state, trailing Mainz, Ludwigshafen, and Koblenz. The nearest major cities are Luxembourg (50 km or 31 mi to the southwest), Saarbrücken (80 kilometres or 50 miles southeast), and Koblenz (100 km or 62 mi northeast).