Kingdom of Two Sicilies was located in the Italian Peninsula but was a free kingdom with different languages (Neapolitan and Sicilian are very different to Italian language). It was one of most advanced State in Europe. At the second Expo which was held in Paris in 1856 the Kingdom of the two Sicilies was awarded third place for industrial development in Europe, after the United Kingdom and France.
You can find this info and other here: http://www.pletthistory.org/talks/the-g ... o-sicilies
Please don't understimate this Kingdom that collapsed because of false promises of Giuseppe Garibaldi.