Source of the Danube
As early as 1847 the following definition can already be found in the "Universallexikon des Großherzogtums Baden" (Universal Lexicon of the Grand Duchy of Baden): “Danube, the biggest river of Germany, rises at the Martinskapelle in a wild and lonely area of the Black Forest, is called Brege at its origin and forms the river Danube in Donaueschingen where it is unified with the Brigach." (German original: „Donau, der größte Fluß Deutschlands, entspringt bei der Martinskapelle in einer wilden und einsamen Gegend des Schwarzwaldes, heißt am Anfang Brege… und bildet erst in Donaueschingen, wo sie sich mit der Brigach vereinigt, die Donau.“)
Lower Danube Circle
The Lower Danube Circle or Under Danube Circle () was one of the administrative districts (German: "Bezirke" or "Regierungsbezirke") of the Kingdom of Bavaria between 1806 and 1837. It was named after its main river, the Danube and was the predecessor of the administrative district of Lower Bavaria ("Regierungsbezirk Niederbayern"). Its administrative headquarters were in Passau, but the appelate court was in Straubing.The district was divided in the following judicial districts ("Landgerichte"), according to the original borders of the districts of the former territories ("Herrschaftsgerichte"):