German Confederation contains the administrative territorial entity Liechtenstein
Germany (all states except Southern Schleswig in the north of Schleswig-Holstein)
Austria (all states except Burgenland)
Luxembourg (entire territory)
Liechtenstein (entire territory)
Netherlands (Duchy of Limburg, was a member of the Confederation from 1839 until 1866)
Czech Republic (entire territory)
Slovenia (except for Prekmurje and the municipalities of Koper, Izola and Piran)
Poland (West Pomeranian Voivodship, Lubusz Voivodship, Lower Silesian Voivodship, Opole Voivodship, part of Silesia –  overwhelmingly German speaking at the time; East Prussia, West Prussia, and much of the Grand Duchy of Posen were admitted into the Confederation on 11 April 1848, but the terms of the restored Confederate Diet removed these territories on 30 May 1851)
Belgium (nine of the eleven cantons of Eupen-Malmedy, Liège Province); the larger province of Luxembourg had left the Confederation at its accession to Belgium in 1839
Italy (autonomous region of Trentino-Alto Adige/Südtirol, the Province of Trieste, most of the Province of Gorizia except the Monfalcone enclave, and the municipalities of Tarvisio, Malborghetto Valbruna, Pontebba, Aquileia, Fiumicello, and Cervignano in the Province of Udine)
Croatia (the Pazin territory in Istria county and the coastal strip between Opatija and Plomin in the Liburnia region)Denmark proper has never been a member state, but its king was at the same time the duke of the member states Holstein and Lauenburg. The Duchy of Schleswig (which nowadays partially belongs to Denmark) was never a part of the Confederation although it was mentioned in the 1849 Frankfurt Constitution and governed briefly by a government installed by the German Central Government. However, Holstein, Lauenburg and Schleswig were combined under an Austrian-Prussian condominium in 1864–1866.
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