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Kingdom of Naples ended in 1816.
There are around 100 congregations in Naples Italy.
If you go to their official website at jw.org, click on "About Us" and then "Meetings" and you can search for a Kingdom Hall near you.
Giambattista Basile was born in 1566, in Giugliano in Campania, Kingdom of Naples [now Naples, Campania, Italy].
Ruggero Leoncavallo was born on April 23, 1857, in Naples, Kingdom of the Two Sicilies [now Naples, Campania, Italy].
Giambattista Basile died on February 23, 1632, in Giugliano in Campania, Kingdom of Naples [now Naples, Campania, Italy].