Oldenburg  is an Independent City in Lower Saxony, Germany. It is situated in the western part of the state between the cities of Bremen and Groningen, Netherlands, at the Hunte river. It has a population of 158,341 (as of 2005) which makes it the fourth biggest in Lower Saxony after Hanover, Brunswick and Osnabrück. In German, the city is known officially as Oldenburg (Oldenburg) or Oldenburg (Oldb) to distinguish it from Oldenburg, Schleswig-Holstein.The town was first mentioned in 1108, at that time known under the name of Aldenburg. It became important due to its location at a ford of the navigable Hunte River. Oldenburg became the capital of the County of Oldenburg (later a Duchy, Grand Duchy and Republic), a small state in the shadow of the much more powerful Hanseatic city of Bremen.