Kingdom of the 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 new world. The kingdom was heavily agricultural, like the other Italian states; the church owned 50–65% of the land by 1750.
Kingdom of Sicily
Charles abdicated in favour of Ferdinand, his third son, who acceded to the thrones with the names of Ferdinand IV of Naples and III of Sicily. Still a minor, Ferdinand grew up amongst pleasures and leisure while the real power was safely held by Bernardo Tanucci, the president of the regency council. During this period most of the reformation process initiated by Charles came to a halt, with the king mostly absent or uninterested in the matters of state and the political helm steered by Queen Maria Carolina and prime ministers Tanucci (until 1777) and John Acton. The latter managed to disentangle Naples and Sicily from the influence of Spain and Austria and to place them nearer to Great Britain, then represented by ambassador William Hamilton. This is the period of the Grand Tour, and Sicily with its many natural and historical attractions is visited by a score of intellectuals from all over Europe that on one side bring to the island the winds of the Enlightenment, and on the other side will spread the fame of its beauty in the continent. 
In 1799 Napoleon conquered Naples, forcing king Ferdinand and the court to flee to Sicily under the protection of the British fleet under the command of Horatio Nelson. While Naples was formed into the Parthenopaean Republic with French support and later again a kingdom under French protection and influence, Sicily became the British base of operation in the Mediterranean in the long struggle against Napoleon. Under British guidance, especially from Lord William Bentinck who was commander of British troops in Sicily, Sicily tried to modernise its constitutional apparatus, forcing the King to ratify a Constitution moulded over the British system. The island was under British occupation from 1806-14. The main feature of the new system was that a two-chamber parliament was formed (instead of the three of the existing one). The formation of the parliament brought the end of feudalism in the Kingdom.