Baden - Wikipedia
Baden (/ ˈ b ɑː d ən /; German: ) is a historical territory in South Germany and North Switzerland, on both sides of the Upper Rhine.. History. The margraves of Baden originated from the House of Zähringen. Baden is named after the margraves' residence, Hohenbaden Castle  in Baden-Baden. Hermann II of Baden first claimed the title of Margrave of Baden in 1112.