Oldenburg

Oldenburg ( ; Low German: Ollnborg; Saterland Frisian: Ooldenbuurich) is an independent city in the state of Lower Saxony, Germany. During the French annexation of the former Duchy of Oldenburg (1810–1815), it was also known as Le Vieux-Bourg in French. The city is situated at the Rivers Hunte and Haaren, in the northwestern region between the cities of Bremen in the east and Groningen (Netherlands) in the west. It has a population of 162,173 (as of 2010), which makes it the fourth biggest city in Lower Saxony after Hanover, Braunschweig and Osnabrück. In German, the formal name is Oldenburg (Oldenburg) or Oldenburg (Oldb) (spoken: Oldenburg in Oldenburg) to distinguish it from the city of Oldenburg in Holstein.