The Kingdom of Naples was a historical state in southern Italy, existing from the 13th century until the 19th century. It was established after the Norman conquest and became a significant center of culture and politics. The kingdom included the regions of Campania, Apulia, and parts of Sicily, with its capital in Naples. Throughout its history, the kingdom experienced various rulers, including the Angevins and the Aragonese. It played a crucial role in the Mediterranean trade and was known for its rich artistic heritage. The kingdom eventually became part of the Kingdom of Italy in the 19th century.