 Today Nielluccio is found almost exclusively on Corsica where it is the principal grape variety behind the AOC wines grown around Patrimonio in the north of the island.The grape's stronghold in the south is Porto-Vecchio, where it is usually blended.According to the AOC regulations for Patrimonio the grapes must be harvested to a yield no greater than 50 hectoliters/hectare and produce red wines with a minimum alcohol level of 12% and "rosé" a minimum of 11.5%.