History of the authorities: The territorial reorganization of Germany by Napoleon brought the former margraviate of Baden between 1803 and 1810 almost a doubling of its territory and an enormous expansion of its population, as well as in 1803 the elevation first to electorate and in 1806 finally to grand duchy. This increase in land and people made it imperative to reorganize and standardize the administrative structures of the administratively heterogeneous state. The organisational edicts issued between 1806 and 1809 as well as the further changes in the administrative structures of the Grand Duchy and the State of Baden made during the 19th and 20th centuries served to achieve these goals. In addition to the Privy Council and Deputy Minister Johann Nicolaus Friedrich Brauer (1754 - 1813), it was the Baden State and Cabinet Minister Sigismund von Reitzenstein (1766 - 1847) who played a decisive role in the administrative reorganization and modernization of the Grand Duchy at the beginning of the 19th century. The organisational rescript of 26 November 1809 divided the Grand Duchy of Baden into 66 sovereign and 53 ranked offices. While the latter were gradually abolished or converted into provincial district offices by 1849 at the latest, the state district offices and high offices were merged and abolished in the course of time to reduce their total number. Originally, the district authorities were purely state authorities and as such were primarily responsible for general state administration and for state supervision of the actions of municipal administrations in their respective districts, but they also had to carry out tasks of the police and - until the establishment of their own court organisation in 1857 - of the judiciary, in particular civil jurisdiction. With the Peace of Pressburg (1805) the territories of Upper Austria in Breisgau were united with the Electorate and from 1806 the Grand Duchy of Baden. The district office Müllheim was established in 1809, the place of the official seat was elevated to a town in the following year. The district offices established in 1809 were assigned to ten districts, whose executive bodies were the district directorates. The district office Müllheim belonged to the Wiesenkreis with official seat in Lörrach. The administrative reform of 1832 replaced the meanwhile remaining six district directorates as central authorities by the district governments of four districts - Seekreis, Oberrheinkreis, Mittelrheinkreis, Unterrheinkreis ¿ and assigned the district of Müllheim to the Oberrheinkreis with administrative seat in Freiburg. With the Act of 5 October 1863 on the Organisation of Internal Administration, effective from 1 October 1864, these four districts were dissolved, the district governments were abolished without substitution as the central bodies of state administration and the district offices were directly subordinated to the Ministry of the Interior, with the number of offices being reduced to 59 and from 1872 to 52 (from 1898 again 53). At the same time, in 1864, the Grand Duchy was divided into eleven district associations as local self-governing bodies without state responsibilities, retaining the district offices as state administrative authorities. The district of Müllheim was assigned to the district of Lörrach. The district offices and district associations in the four newly formed state commissioner districts of Constance, Freiburg, Karlsruhe and Mannheim were combined to handle state administrative supervision. At their head was a state commissioner with a seat and vote in the Grand Ducal Ministry of the Interior. The district office Müllheim was assigned to the Landeskommissärbezirk Freiburg.1924 the number of district offices was reduced again, from 53 to 40. 1936/1938 the number of district offices was reduced again, from 40 to 27. In addition the 1864 established district associations were abolished, and the previous districts received the designation Landkreise from 1 January 1939. The district administrations thus became a mixed construction of state administration and local self-administration. In the Nazi dictatorship, however, their formally maintained powers of self-administration were only on paper, since the decision-making and decision-making powers were transferred from the district assembly to the district chairman appointed by the Ministry of the Interior, who was assisted by three to six district councils only in an advisory capacity. In the reorganization of the administration after the end of the war in 1945, the legal supervision of the administrative districts, which continued to perform state tasks but now really also became local self-governing bodies with democratic legitimation, was initially transferred from the state commissioners to the (southern) Baden Ministry of the Interior. After the formation of the federal state of Baden-Württemberg, it was replaced by the Regional Council of South Baden as the central authority for the administrative district of South Baden. The district area reform in Baden-Württemberg, which came into force on 1 January 1973, brought an end to the district of Müllheim, whose towns and municipalities were for the most part incorporated into the district of Breisgau-Hochschwarzwald. In the 160 years of its existence, the district office and district administrator's office of Müllheim has undergone repeated changes which cannot be explained in detail here. The district received the largest growth through the dissolution of the Staufen District in 1936, when the municipalities in the southern part of the district were assigned to the Müllheim District Office, which included the following towns and municipalities: Auggen with Hach, Badenweiler, Ballrechten with Kastelhof, Betberg, Britzingen, Buggingen, Dattingen, Dottingen, Gallenweiler, Gittingen, Hügelheim, Laufen, Lipburg, Müllheim, Muggardt, Neuenburg, Niederweiler, Oberweiler, St. Ilgen, Schweighof with the Sirnitzer Höfe, Sehringen, Sulzburg with Sengelberger Hof, Vögisheim, Zienken and Zunzingen. When it was dissolved, the district of Müllheim included the following locations: Auggen, Badenweiler, Ballrechten (today Ballrechten-Dottingen), Bamlach (today district of Bad Bellingen, district of Lörrach), Bad Bellingen (today district of Lörrach), Bremgarten (today district of Hartheim), Britzingen (today district of Müllheim), Buggingen, Dattingen (today part of Müllheim), Dottingen (today Ballrechten-Dottingen), Eschbach, Feldberg (today part of Müllheim), Feuerbach (today part of Kandern, district of Lörrach), Gallenweiler (today part of Heitersheim), Grißheim (today district of Neuenburg), Grunern (today district of Staufen), Heitersheim, Hertingen (today district of Bad Bellingen, district of Lörrach), Hügelheim (today district of Müllheim), Kandern (today district of Lörrach), Bad Krozingen, Laufen (today part of Sulzburg), Liel (today part of Schliengen, district of Lörrach), Lipburg (today part of Badenweiler), Malsburg (today Malsburg-Marzell, district of Lörrach), Marzell (today Malsburg-Marzell, district of Lörrach), Mauchen (today district of Schliengen, district of Lörrach), Müllheim, Neuenburg, Niedereggenen (today district of Schliengen, district of Lörrach), Niederweiler (today district of Müllheim), Obereggenen (today district of Schliengen, district of Lörrach), Obermünstertal (today Münstertal), Rheinweiler (today district of Bad Bellingen, district of Lörrach), Riedlingen (today district of Kandern, district of Lörrach), Schlatt (today district of Bad Krozingen), Schliengen (today district of Lörrach), Schweighof (today part of Badenweiler), Seefelden (today part of Buggingen), Sitzenkirch (today part of Kandern, district of Lörrach), Staufen, Steinenstadt (today part of Neuenburg), Sulzburg, Tannenkirch (today part of Kandern), County Lörrach), Tunsel (today district of Bad Krozingen), Untermünstertal (today Münstertal), Vögisheim (today district of Müllheim), Wettelbrunn (today district of Staufen), Zienken (today district of Neuenburg), Zunzingen (today district of Müllheim). Inventory history: Before the beginning of the registration work, the files of the district office / district office Müllheim were distributed to the following inventories:a) B 725/1, /2, /3, /4, /5, /6, /7, /8, /9, /10, /11, /12, /13, /14, /16; B 793/1; B 793/2b) E 27/1, /3 c) G 18/1, /2, /4, /6, /7, /8, /9, /13, /14, /15, /16, /17, /18, /19The stocks mentioned under a) were first combined to form stock B 725/1 (new). In the process, foreign provenances with a term ending after 1806 and before 1953 were taken and assigned to other holdings of the Freiburg State Archives according to their provenance. In a second step, the holdings listed under b), which had been formed from documents delivered by the District Office Müllheim, were integrated into the holdings B 725/1 (new). Thirdly, the files from the holdings mentioned under c) with the provenance Bezirksamt/Landratsamt Müllheim were incorporated into B 725/1 (new). From all three groups of holdings, files with the end of their term before 1806 and after 1952 were separated and transferred to the General State Archive Karlsruhe or to the District Archive Breisgau-Hochschwarzwald. In justified exceptional cases, e.g. when the proportion of written material created after 1952 in a file was limited to a few documents, files with a duration beyond 1952 were also included in B 725/1 (new).Notes for use:Concordances in the printed version of the finding aid book for B 725/1 (new) show all presignatures of the individual files. The pre-signature 1 contains the last signature used in the Freiburg State Archives before the new indexing and the pre-signature 2 the penultimate signature used in the Freiburg State Archives or the signature formerly used in the Karlsruhe General State Archives. The present holdings were recorded by Corina Giesin, Edgar Hellwig, Dr. Kurt Hochstuhl, Annika Scheumann, Bernhard Schüly, Anja Steeger and Dr. Christof Strauß. Dr. Christof Strauß was responsible for the planning, organisation and coordination of the work, final correction and final editing of the finding aid was carried out by the undersigned with the assistance of Anja Steeger. The stock B 725/1 now comprises 13018 fascicles and measures 102.40 lfd.m.Freiburg, December 2012Edgar Hellwig