Nerello is a name given to two varieties of red wine grapes that are grown primarily in Sicily and Sardinia: Nerello Mascalese, which is named after the Mascali area in Catania where the grape is thought to have originated. It is grown mainly on the northeastern side of Sicily and is thought to be superior in quality to the Nerello Cappuccio. While it can be used for blending, the grape is often made into varietal wine. The grape is believed to be an offspring of the Calabrian wine grape Mantonico bianco.
https://en.wikipedia.org/wiki/Nerello