Okay kiddo, so a long time ago, there was a place called Italy, but it wasn't really one country yet. Instead, there were a bunch of smaller areas that were all controlled by different leaders.
One of these areas was called the Kingdom of the Two Sicilies. This kingdom was made up of two big islands called Sicily and Sardinia, as well as some smaller areas on the mainland of Italy.
The people who lived in the Kingdom of Two Sicilies spoke Italian, but they also had their own unique culture and traditions.
For a while, the Kingdom of the Two Sicilies was ruled by a king named Ferdinand II. He wasn't very nice to the people who lived there, and they didn't like him very much.
Eventually, a group of people called the Risorgimento came along. They wanted to unite all the different areas of Italy into one big country. The Kingdom of the Two Sicilies was one of the last places to join this new country, which was finally formed in 1861.
So, even though the Kingdom of the Two Sicilies isn't around anymore, its history is an important part of Italy's story.