 After the Principal Decree of the Imperial Deputation in 1803, the village became part of Wurttemberg and was integrated into the newly created city district of Rottweil.Dunningen Castle, which was built in the 11th century, has disappeared completely .In the course of the administrative reform that took place in Baden-Wurttemberg in the seventies, the municipalities of Lackendorf and Seedorf were incorporated into Dunningen, on 1 August 1972 and 1 January 1974 respectively.