Offenburg

City, Baden-Württemberg Land (state), southwestern Germany, in the Kinzig River Valley, at the western edge of the Black Forest (Schwarzwald). First mentioned in 1101, it was founded by the Zähringen margraves on the site of a Roman settlement and was an imperial free city from 1289 to 1802. In 1846–49 it was a centre of the revolutionary movement in Baden. Gothic and Baroque buildings and remains