Naples and everything south of naples upto to Sicily included used to be called the Kingdom of two Sicilies.

The Kingdom of the Two Sicilies lasted from 1815 until 1860, when it was annexed by the Kingdom of Sardinia to form the Kingdom of Italy in 1861. The capitals of the Two Sicilies were in Naples and in Palermo. The kingdom extended over the Mezzogiorno (the southern part of mainland Italy) and the island of Sicily. Jordan Lancaster notes that the integration of the Kingdom of the Two Sicilies into the Kingdom of Italy changed the status of Naples forever: "Abject poverty meant that, throughout Naples and Southern Italy, thousands decided to leave in search of a better future." Many went to the United States, Australia and Argentina.[5] The kingdom was heavily agricultural, like the other Italian states;[6] the church owned 50–65% of the land by 1750.[7]