Freiburg im Breisgau (German: [ˈfʁaɪbʊʁk ʔɪm ˈbʁaɪsɡaʊ] ; Alemannic: Friburg im Brisgau; French: Fribourg-en-Brisgau; lit. Freecastle in the Breisgau; mostly called simply Freiburg) is the fourth-largest city of the German state of Baden-Württemberg after Stuttgart, Mannheim and Karlsruhe. Its built-up area has a population of about 355,000 (2021), while the greater Freiburg metropolitan area ("Einzugsgebiet") has about 660,000 (2018). Freiburg is located in Baden, at the southwestern foothills of the Black Forest, on the Dreisam River, a tributary of the Elz.
https://en.wikipedia.org/wiki/Freiburg_im_Breisgau