Danube
Classified as an international waterway, it originates in the town of Donaueschingen, in the Black Forest of Germany, at the confluence of the rivers Brigach and Breg. The Danube then flows southeast for about , passing through four capital cities (Vienna, Bratislava, Budapest and Belgrade) before emptying into the Black Sea via the Danube Delta in Romania and Ukraine.
Danube Swabians
The Danube Swabians () is a collective term for the German-speaking population who lived in various countries of southeastern Europe, especially in the Danube River valley. Most were descended from 18th-century immigrants recruited as colonists to repopulate the area after the expulsion of the Ottoman Empire.