'' (with the
Swiss cross on the reverse) minted in Berne (1826) When Napoleon's fall appeared imminent, the Act of Mediation was suspended in late December 1813, and lengthy discussions about future constitutions were initiated in all
cantons of Switzerland. The
Tagsatzung (the gathering of delegates from all the nineteen cantons) which took place between 6 April 1814 and 31 August 1815, the so-called "
Long Diet", met at
Zurich to replace the constitution. The Diet remained dead-locked until 12 September when
Valais, the
Principality of Neuchâtel and the
Republic of Geneva were raised to full members of the Confederation. This increased the number of
cantons to 22. The Diet, however, made little progress until the
Congress of Vienna. At the
Congress of Vienna (18 September 1814 to 9 June 1815), the
Swiss Confederation was represented by a delegation of three conservative politicians,
Hans von Reinhard,
Johann Heinrich Wieland and
Johann von Montenach, besides a number of unofficial lobbyists attempting to influence the country's re-organisation, such as
Frédéric-César de La Harpe who, with the support of his former pupil
Emperor Alexander I of Russia, campaigned for
Vaud's independence from
Bern — though, on the other hand, de La Harpe opposed the creation of a federal state as opposed to a united Swiss republic. In addition, de La Harpe and his friend Henri Monod lobbied Emperor Alexander, who in turn persuaded the other Allied powers opposing Napoleon to recognise Vaudois and Argovian independence, in spite of Bern's attempts to reclaim them as
subject lands. The official delegation had the mission of ensuring the recognition of Swiss neutrality, but their efforts were hampered by a complicated web of cantonal rivalries and diverging agendas, which went to discourage the interest of the great European powers in Swiss affairs. On 20 March, the Congress finalized a declaration on the future status of Switzerland, including the recognition of the territory of the 19 cantons of the Act of Mediation (including financial compensation for those cantons which had lost territory to newly formed ones) and the recognition of Valais, Neuchâtel and Geneva as part of Switzerland, while the
Valtellina,
Chiavenna and
Bormio were detached from the
Grisons and made part of the
Kingdom of Lombardy–Venetia. Recognition of Swiss neutrality was left undecided, and on 20 May, after
Napoleon's return from Elba the Swiss Tagsatzung gave in to allied pressure and declared war on France, allowing the passage of allied troops across Swiss territory (see the
minor campaigns of 1815). Swiss troops under General
Niklaus Franz von Bachmann advanced to the
Franche-Comté without orders from the diet, but were ordered back. The French fort at
Hüningen near Basel was placed under siege by Austrian and Swiss troops and surrendered on 28 August. The Swiss were particularly eager to lay siege to this fortress after its commander General
Joseph Barbanègre opened fire on the city of Basel. The
Treaty of Paris of 20 November included a financial compensation for Switzerland besides the acquisition of a small territorial gain, connecting the canton of Geneva (formerly an
exclave) to Vaud. Most significantly, the Treaty included the recognition of permanent Swiss neutrality by all European powers. Cantonal constitutions were worked out independently from 1814, in general restoring the late feudal conditions of the 17th and 18th centuries. The
Tagsatzung was re-organized by the
Federal Treaty (
Bundesvertrag) of 7 August 1815. The Tagsatzung reintroduced the
old flag consisting of a white cross on a red field, using it for the
seal and coat of arms of the confederation. ==End of the Restoration==