Russia received most of the Duchy of Warsaw (Poland) and retained Finland (which it had annexed from Sweden in 1809 and would hold until 1917, as the Grand Duchy of Finland).
Prussia received three-fifths of Saxony, western parts of the Duchy of Warsaw (most of which became part of the newly formed Grand Duchy of Posen), Gdańsk (Danzig), the Grand Duchy of the Lower Rhine (merger of the former French departments of Rhin-et-Moselle, Sarre, and Roer (Province of Jülich-Cleves-Berg, itself a merger of the former Prussian Guelders, Principality of Moers, and the Grand Duchy of Berg).
A German Confederation of 39 states, under the presidency of the Austrian Emperor, formed from the previous 300 states of the Holy Roman Empire. Only portions of the territories of Austria and Prussia were included in the Confederation (roughly the same portions that had been within the Holy Roman Empire).
The Netherlands and the Southern Netherlands (approximately modern-day Belgium) became a united monarchy, the United Kingdom of the Netherlands, with the House of Orange-Nassau providing the king (the Eight Articles of London).To compensate for Orange-Nassau's loss of the Nassau lands to Prussia, the United Kingdom of the Netherlands and the Grand Duchy of Luxembourg were to form a personal union under the House of Orange-Nassau, with Luxembourg (but not the Netherlands) inside the German Confederation.
Swedish Pomerania, given to Denmark in January 1814 in return for the Kingdom of Norway, became part of Prussia. France received back Guadeloupe from Sweden, with yearly instalments payable to the Swedish king.
The neutrality of the 22 cantons of Switzerland was guaranteed and a federal pact was recommended to them in strong terms. Bienne and the Prince-Bishopric of Basel became part of the Canton of Bern. The Congress also suggested a number of compromises for resolving territorial disputes between cantons.
The former Electorate of Hanover was expanded to a kingdom. It gave up the Duchy of Lauenburg to the Kingdom of Denmark, but gained former territories of the Bishop of Münster and formerly Prussian East Frisia.
Most of the territorial gains of Bavaria, Württemberg, Baden, Hesse-Darmstadt, and Nassau under the mediatizations of 1801–1806 were recognized.
Bavaria also gained control of the Rhenish Palatinate and of parts of the Napoleonic Duchy of Würzburg and Grand Duchy of Frankfurt. Hesse-Darmstadt, in exchange for giving up the Duchy of Westphalia to Prussia, received Rhenish Hesse with its capital at Mainz.
Austria regained control of the Tyrol and Salzburg; (from Russia); and received Lombardy–Venetia in Italy and Ragusa in Dalmatia. Former Austrian territory in Southwest Germany remained under the control of Württemberg and Baden; the Austrian Netherlands were also not recovered.
Ferdinand III was restored as Grand Duke of Tuscany.