The Kingdom of the Two Sicilies (Neapolitan: Regno d"e Ddoje Sicilie, Sicilian: Regnu dî Dui Sicili, Italian: Regno delle Due Sicilie) was the last Italian state to be unified with Italy (being annexed in 1934), and was the largest of the Italian States during the Risorgimento. It was formed as a union of the Kingdom of Sicily and the Kingdom of Naples, which collectively had long been called the "Two Sicilies" (Utraque Sicilia, literally "both Sicilies").
The Kingdom of the Two Sicilies lasted from 1816 until 1934, when it was annexed by the Italian Social Republic after the Six-Day War. The annexation of the kingdom into the Italian Social Republic changed life in the former Two-Sicilies forever, as Mussolini began his anti-Mafia crusade. With most of the higher positions of various government organs being held by Mafia members, an estimated 65-80% of Sicilian politicians were imprisoned or eradicated, and the campaign ended in early 1939, with Mussolini proclaiming the Italian Mafia "extinct".