The Breisgau (German pronunciation: [ˈbʁaɪ̯sɡaʊ̯] ⓘ) is an area in southwest Germany extending along the Rhine River and enveloping portions of the Black Forest.In earlier times, the Breisgau was known as Breisachgau, meaning the county around the town of Breisach on the east bank of the Rhine.It remained a part of Alemannia throughout the Early Middle Ages and was a buffer zone between the central Alemannic lands and Alsace, which was less strongly colonized by the Alemanni.In the south, the Breisgau borders onto the Markgräflerland, in the west onto the Sundgau (Alsace, France), in the east onto the Black Forest, and in the north onto the Ortenau area.Other notable cities and towns are Bad Krozingen, Breisach, Emmendingen, Endingen, Kenzingen, Neuenburg, Staufen and Waldkirch.