King Charles Albert of Piedmont-Sardinia granted the Statuto Albertino, a constitution that created a constitutional monarchy and limited civil rights. These reforms helped Piedmont-Sardinia present itself as a leader of liberal-national change in Italy just as revolts spread across the peninsula.
An uprising in Milan forced Austrian commander Joseph Radetzky to withdraw from the city after intense street fighting. The revolt inspired other anti-Austrian movements in northern Italy and set the stage for Piedmont-Sardinia to intervene militarily.
In Venice, revolutionaries overthrew Austrian authority and proclaimed the Republic of San Marco under Daniele Manin’s leadership. The new republic linked local Venetian independence to the wider Italian nationalist cause.
One day after the end of the Milan uprising, Charles Albert declared war on the Austrian Empire. This decision turned regional revolts into a larger interstate conflict, now remembered as the First Italian War of Independence.
Piedmontese forces won an early engagement at the bridge over the Mincio River near Goito. Securing the crossing helped their army advance toward Austria’s fortified “Quadrilateral” (Verona, Mantua, Peschiera, and Legnago).
Piedmont-Sardinia attempted to force a decisive battle near Verona but ran into strong Austrian defensive positions at Santa Lucia. The setback slowed the offensive and showed that the Austrian army under Radetzky could still control key strongpoints.
Tuscan and Neapolitan volunteers fought Austrian troops near Mantua at Curtatone and Montanara. Although the Italians were defeated, their resistance helped buy time for Piedmontese forces to organize for the next fighting along the Mincio.
The Austrian fortress of Peschiera—one corner of the Quadrilateral—capitulated after siege pressure from Piedmont-Sardinia. The fall of Peschiera, together with the fighting around Goito, marked a peak moment for the Italian coalition before Austria recovered the initiative.
Radetzky’s forces inflicted a major defeat on Charles Albert’s army at Custoza. The loss forced the Piedmontese to retreat and weakened hopes that early revolts in Lombardy could be secured by military victory.
After a string of setbacks, Piedmont-Sardinia agreed to the Armistice of Salasco, halting major operations. The pause gave Austria time to reassert control in parts of northern Italy and left revolutionary governments increasingly isolated.
Revolutionaries in Rome proclaimed a Roman Republic, challenging the temporal (political) power of Pope Pius IX. Its creation broadened the conflict from northern battlefields to the center of Italy, and it soon drew foreign intervention.
Charles Albert ended the armistice and resumed fighting, hoping to reverse earlier defeats. Austria responded quickly, and the renewed campaign moved toward a decisive confrontation in Piedmont-Sardinia’s own territory.
At Novara, Radetzky’s army defeated Piedmont-Sardinia’s forces, making continued large-scale resistance difficult. The battle became the turning point that forced Piedmont-Sardinia to seek terms and reshaped leadership in Turin.
After Novara, Charles Albert abdicated in favor of his son, Victor Emmanuel II. Victor Emmanuel then agreed to the Armistice of Vignale, ending Piedmont-Sardinia’s renewed campaign and leaving other Italian revolutionary centers exposed.
French forces intervened to restore papal authority and besieged Rome, facing determined defense by republican volunteers including Giuseppe Garibaldi. The fall of Rome ended the Roman Republic, showing how foreign powers could still shape outcomes in Italy.
Piedmont-Sardinia signed peace terms at Milan after the armistice period, including a large indemnity payment to Austria. The settlement confirmed a return to the prewar political balance in much of northern Italy, even though nationalist ideas continued to spread.
After prolonged pressure and bombardment, Venice’s revolutionary government capitulated and Austrian rule was restored. With Venice’s fall, the last major revolutionary holdout connected to the 1848–1849 war was eliminated, closing this phase of the struggle for Italian unification.
First Italian War of Independence (1848–1849)