Sicily
The Expedition of the Thousand led by Giuseppe Garibaldi captured Sicily in 1860, as part of the . The conquest started at Marsala, and native Sicilians joined him in the capture of the southern Italian peninsula. Garibaldi's march was completed with the Siege of Gaeta, where the final Bourbons were expelled and Garibaldi announced his dictatorship in the name of Victor Emmanuel II of Kingdom of Sardinia. Sicily became part of the Kingdom of Sardinia after a referendum where more than 75% of Sicily voted in favour of the annexation on 21 October 1860 (but not everyone was allowed to vote). As a result of the Kingdom of Italy proclamation, Sicily became part of the kingdom on 17 March 1861.
Kingdom of the Two Sicilies
In 1501, King Ferdinand II of Aragon, son of John II, conquered Naples and reunified the two kingdoms under the authority of the newly united Spanish throne. The Kings of Spain then bore the title "King of Both Sicilies" or "King of Sicily and of the Two Coasts of the Strait" until the War of the Spanish Succession. At the end of that war, the Treaty of Utrecht in 1713 granted Sicily to the Duke of Savoy until the Treaty of Rastatt in 1714 left Naples to the Emperor Charles VI. In 1720 the Emperor and Savoy exchanged Sicily for Sardinia, thus reuniting Naples and Sicily.