The farm Mastrojanni is located in Castelnuovo dell'Abate, at the extreme south-east of Montalcino, near Siena, in Italy the area to high wine vocation: the birthplace of Brunello di Montalcino. Mastrojanni is a company of Gruppo Illy.

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The estate has an area of ​​108 hectares, of which 39 are vineyards between Brunello di Montalcino DOCG, Rosso di Montalcino DOC, Sant'Antimo Rosso DOC and Moscadello di Montalcino DOC.
There are small cultivations of olive groves, wooded areas and others in arable land, with altitudes ranging from 180 to 420 m / asl.