Vidin is a port town on the southern bank of the Danube in north-western Bulgaria. It is close to the borders with Romania and Serbia, and is also the administrative centre of Vidin Province, as well as of the Metropolitan of Vidin (since 870).An agricultural and trade centre, Vidin has a fertile hinterland renowned for its wines.NameThe name is archaically spelled as Widdin in English. Old name Dunonia itself meant "fortified hill" in Celtic with the typically dun found frequently in Celtic place names.GeographyVidin is the westernmost important Bulgarian Danube port and is situated on one of the southernmost sections of the river. The New Europe Bridge, completed in 2013, connects Vidin to the Romanian town of Calafat on the opposite bank of the Danube. Previously, a ferry located 2km from the town was in use for that purpose.HistoryVidin emerged at the place of an old Celtic settlement known as Dunonia. The settlement evolved into a Roman fortified town called Bononia. The town grew into one of the important centres of the province of Upper Moesia, encompassing the territory of modern north-western Bulgaria and eastern Serbia.When Slavs settled in the area, they called the town Badin or Bdin, where the modern name comes from. Similarly, Anna Komnene refers to it as Vidynē (Βιδύνη) in the Alexiad.