Grand Duchy of Oldenburg
The Grand Duchy of Oldenburg was a historical state in northwestern Germany, established in the early 19th century. It was part of the German Confederation and was ruled by the House of Oldenburg. The capital city was Oldenburg, which served as a cultural and administrative center for the region.
The Grand Duchy was known for its agricultural economy and scenic landscapes, including the North Sea coastline. It played a role in the political landscape of Germany until it became part of the German Empire in 1871, marking the end of its status as an independent grand duchy.