Brunello di Montalcino is a red Italian wine produced in the vineyards surrounding the town of Montalcino located about 80 km south of Florence in the Tuscany wine region. Brunello, a diminutive of bruno, which means brown, is the name that was given locally to what was believed to be an individual grape variety grown in Montalcino. In 1879 the Province of Siena's Amphelographic Commission determined, after a few years of controlled experiments, that Sangiovese and Brunello were the same grape variety, and that the former should be its designated name. In Montalcino the name Brunello evolved into the designation of the wine produced with 100% Sangiovese.
In 1980, Brunello di Montalcino was awarded the first Denominazione di Origine Controllata e Garantita (DOCG) designation and today is one of Italy's best-known and most expensive wines.
One of the first records of "Brunello" was a red wine that was made in the Montalcino area in the early 14th century. In 1831, marchese Cosimo Ridolfi (who was later appointed Prime Minister of Tuscany by the Grand Duke Leopold II) praised the merits of the red wines of Montalcino above all others in Tuscany. In 1865, an agricultural fair in Montalcino noted that the prize winning wine of the event was a "select red wine" known as a Brunello. In the mid-19th century, a local farmer named Clemente Santi isolated certain plantings of Sangiovese vines in order to produce a 100% varietal wine that could be aged for a considerable period of time. In 1888, his grandson Ferruccio Biondi-Santi—a veteran soldier who fought under Giuseppe Garibaldi during the Risorgimento—released the first "modern version" of Brunello di Montalcino that was aged for over a decade in large wood barrels.