Third Italian War of Independence in the context of "Franz Josef I of Austria"

Veneto, officially the Region of Veneto, is one of the 20 regions of Italy, located in the north-east of the country. It is the 4th most populous region in Italy, with a population of 4,851,851 as of 2025. Venice is the region's capital while Verona is the largest city.

Veneto was part of the Roman Empire until the 5th century AD. Later, after a feudal period, it was part of the Republic of Venice until 1797. Venice ruled for centuries over one of the largest and richest maritime republics and trade empires in the world. After the Napoleonic Wars and the Congress of Vienna, the former Republic was combined with Lombardy and re-annexed to the Austrian Empire as the Kingdom of Lombardy–Venetia, until that was merged with the Kingdom of Italy in 1866, as a result of the Third Italian War of Independence and of a plebiscite.

The Kingdom of Italy (Italian: Regno d'Italia, pronounced [ˈreɲɲo diˈtaːlja]) was a unitary state that existed from 17 March 1861, when Victor Emmanuel II of Sardinia was proclaimed King of Italy, until 10 June 1946, when the monarchy was abolished, following civil discontent that led to an institutional referendum on 2 June 1946. This resulted in a modern Italian Republic. The kingdom was established through the unification of several states over a decades-long process, called the Risorgimento. That process was influenced by the Savoy-led Kingdom of Sardinia, which was one of Italy's legal predecessor states. In 1882 it became a colonial empire, establishing the Italian Empire.

In 1866, Italy declared war on Austria in alliance with Prussia and, upon its victory, received the region of Veneto. Italian troops entered Rome in 1870, ending more than one thousand years of Papal temporal power. In the last two decades of the 19th century, Italy developed into a colonial power, and in 1882 it entered into a Triple Alliance with the German Empire and the Austro-Hungarian Empire, following strong disagreements with France about their respective colonial expansions. Although relations with Berlin became very friendly, the alliance with Vienna remained purely formal, due in part to Italy's desire to acquire Trentino and Trieste from Austria-Hungary. As a result, Italy accepted the British invitation to join the Allied Powers during World War I, as the western powers promised territorial compensation (at the expense of Austria-Hungary) for participation that was more generous than Vienna's offer in exchange for Italian neutrality. Victory in the war gave Italy a permanent seat in the Council of the League of Nations, but it did not receive all the territories it was promised.

The Kingdom of Lombardy–Venetia, commonly called the "Lombardo-Venetian Kingdom", was a constituent land (crown land) of the Austrian Empire from 1815 to 1866. It was created in 1815 by resolution of the Congress of Vienna in recognition of the Austrian House of Habsburg-Lorraine's rights to the former Duchy of Milan and the former Republic of Venice after the Napoleonic Kingdom of Italy, proclaimed in 1805, had collapsed.

The kingdom survived for only fifty years—the region of Lombardy was ceded to France in 1859 after the Second Italian War of Independence, which then immediately ceded it to the Kingdom of Sardinia. Lombardy-Venetia was finally dissolved in 1866 when its remaining territory was incorporated into the recently proclaimed Kingdom of Italy following the kingdom's victory against Austria in the Third Italian War of Independence.

The Venetian plebiscite of 1866, also known officially as the Plebiscite of Venetian Provinces and Mantua (Italian: Plebiscito di Venezia, delle province venete e di quella di Mantova), was a plebiscite that took place on Sunday 21 and Monday 22 October 1866 to sanction the annexation to the Kingdom of Italy of the lands ceded to France by the Austrian Empire following the Third War of Independence.

Franz Joseph I or Francis Joseph I (German: Franz Joseph Karl [fʁants ˈjoːzɛf ˈkaʁl]; Hungarian: Ferenc József Károly [ˈfɛrɛnt͡s ˈjoːʒɛf ˈkaːroj]; 18 August 1830 – 21 November 1916) was Emperor of Austria, King of Hungary, and the ruler of the other states of the Habsburg monarchy from 2 December 1848 until his death in 1916. In the early part of his reign, his realms and territories were referred to as the Austrian Empire, but in 1867 they were reconstituted as the dual monarchy of Austria-Hungary. From 1 May 1850 to 24 August 1866, he was also president of the German Confederation.

In December 1848, Franz Joseph's uncle Emperor Ferdinand I abdicated the throne at Olomouc, as part of Minister President Felix zu Schwarzenberg's plan to end the Hungarian Revolution of 1848. Franz Joseph then acceded to the throne. In 1854, he married his first cousin Duchess Elisabeth in Bavaria, with whom he had four children: Sophie, Gisela, Rudolf, and Marie Valerie. Largely considered to be a reactionary, Franz Joseph spent his early reign resisting constitutionalism in his domains. The Austrian Empire was forced to cede its influence over Tuscany and most of its claim to Lombardy–Venetia to the Kingdom of Sardinia, following the Second Italian War of Independence in 1859 and the Third Italian War of Independence in 1866. Although Franz Joseph ceded no territory to the Kingdom of Prussia after the Austrian defeat in the Austro-Prussian War, the Peace of Prague (23 August 1866) settled the German Question in favour of Prussia, which prevented the unification of Germany from occurring under the House of Habsburg.

The Anniversary of the Unification of Italy (Italian: Anniversario dell'Unità d'Italia) is a national day that falls annually on 17 March and celebrates the birth of Italy as a modern nation state, which took place following the proclamation of the Kingdom of Italy on 17 March 1861.

However, the complete unification of Italy took place only in the following years. In 1866 the Veneto and the province of Mantua were annexed after the Third Italian War of Independence, then in 1870 Lazio after the capture of Rome, and finally in 1918 Trentino-Alto Adige and Julian March after the First World War. In this regard, the National Unity and Armed Forces Day (Victory Day) was also established, which is celebrated annually on 4 November, recalling the Italian victory in the First World War, a war event considered to complete the process of unification of Italy.

The Austro-Prussian War (German: Preußisch-Österreichischer Krieg) was fought in 1866 between the Austrian Empire and the Kingdom of Prussia, with each also being aided by various allies within the German Confederation. Prussia had also allied with the Kingdom of Italy, linking this conflict to the Third Independence War of Italian unification. The Austro-Prussian War was part of the wider rivalry between Austria and Prussia, and resulted in Prussian dominance over the German states, having confirmed Prussia's superior military organization and technology compared to Austria at the time.

The major result of the war was a shift in power among the German states away from Austrian and towards Prussian hegemony. It resulted in the abolition of the German Confederation and its partial replacement by the unification of all of the northern German states in the North German Confederation that excluded Austria and the other southern German states, a Kleindeutsches Reich. The war also resulted in the Italian annexations of the Austrian realm of Venetia.

The Italo-Prussian Alliance was a military pact signed by the Kingdom of Italy and the Kingdom of Prussia on 8 April 1866. It established the terms on which the two nations would enter hostilities against Austria and their respective compensations in the event of victory. For Italy, this was to be the Veneto; for Prussia, other territories of Austria. The alliance led to the Austro-Prussian War which on the Italian front took the name of Third Italian War of Independence. At the end of the conflict, thanks to Prussia's victories, Italy obtained the Veneto while Prussia placed itself at the head of the new North German Confederation.