Neapolitan War: Joachim Murat, King of Naples is defeated by the Austrians at the Battle of Tolentino, the decisive engagement of the war.
The Battle of Tolentino was fought from 23 May 1815 near Tolentino, Kingdom of Naples in what is now Marche, Italy: it was the decisive battle in the Neapolitan War, fought by the Napoleonic King of Naples Joachim Murat to keep the throne after the Congress of Vienna. The battle was similar to the Battle of Waterloo. Both occurred during the Hundred Days following Napoleon's return from exile and resulted in a decisive victory for the Seventh Coalition, leading to the restoration of the previous Bourbon king, Ferdinand I.
The Neapolitan War, also known as the Austro-Neapolitan War, was a conflict between the Napoleonic Kingdom of Naples and the Austrian Empire. It started on 15 March 1815 when King Joachim Murat declared war on Austria and ended on 20 May 1815 with the signing of the Treaty of Casalanza. The war occurred during the Hundred Days between Napoleon's return from exile and before he left Paris to be decisively defeated at the Battle of Waterloo. The war was triggered by a pro-Napoleon uprising in Naples, and ended with a decisive Austrian victory at the Battle of Tolentino after which Bourbon monarch Ferdinand IV was reinstated as King of Naples and Sicily. However, the intervention by Austria caused resentment in Italy, which further spurred on the drive towards Italian unification.