According to the Treaty of Vienna signed on 12 October 1866, the Austrian Empire

Austrian Empire

The Austrian Empire was a modern era successor empire, which was centered on what is today's Austria and which officially lasted from 1804 to 1867. It was followed by the Empire of Austria-Hungary, whose proclamation was a diplomatic move that elevated Hungary's status within the Austrian Empire...

 ceded Venetia to the French Empire

Second French Empire

The Second French Empire or French Empire was the Imperial Bonapartist regime of Napoleon III from 1852 to 1870, between the Second Republic and the Third Republic, in France.-Rule of Napoleon III:...

, which in turn would cede it to the Kingdom of Italy

Kingdom of Italy (1861–1946)

The Kingdom of Italy was a state forged in 1861 by the unification of Italy under the influence of the Kingdom of Sardinia, which was its legal predecessor state...

, «under the reservation of the "consent of the people duly consulted"». This represented the final division of the Kingdom of Lombardy-Venetia, as Lombardy

Lombardy

Lombardy is one of the 20 regions of Italy. The capital is Milan. One-sixth of Italy's population lives in Lombardy and about one fifth of Italy's GDP is produced in this region, making it the most populous and richest region in the country and one of the richest in the whole of Europe...

 had been ceded to the Kingdom of Sardinia

Kingdom of Sardinia

The Kingdom of Sardinia consisted of the island of Sardinia first as a part of the Crown of Aragon and subsequently the Spanish Empire , and second as a part of the composite state of the House of Savoy . Its capital was originally Cagliari, in the south of the island, and later Turin, on the...

 by the Treaty of Zurich

Treaty of Zurich

The Treaty of Zurich was signed by the Austrian Empire, the French Empire, and the Kingdom of Sardinia on November 10, 1859. The agreement was a reaffirmation of the terms of the preliminary peace of Villafranca, which brought the Austro-Sardinian War to an official close...

 in 1859.

See also

• Peace of Prague
  Peace of Prague (1866)
  The Peace of Prague was a peace treaty signed at Prague on 23 August 1866, which ended the Austro-Prussian War. The treaty was lenient toward the Austrian Empire because Otto von Bismarck had persuaded William I that maintaining Austria's place in Europe would be better in the future for Prussia...
  
   23 August 1866
• Italian unification
  Italian unification
  Italian unification was the political and social movement that agglomerated different states of the Italian peninsula into the single state of Italy in the 19th century...
  
  
• Third Italian War of Independence
  Third Italian War of Independence
  The Third Italian War of Independence was a conflict which paralleled the Austro-Prussian War, and was fought between the Kingdom of Italy and the Austrian Empire.-Background:...
  
  
• Austro-Prussian War
  Austro-Prussian War
  The Austro-Prussian War was a war fought in 1866 between the German Confederation under the leadership of the Austrian Empire and its German allies on one side and the Kingdom of Prussia with its German allies and Italy on the...