"The Chianti Classico zone is large and varied, stretching from the suburbs of Florence in the north to the outskirts of Siena in the south. Soil and aspect vary greatly within the zone. As a result, there are those who argue that the zone should be divided into subzones, or into communes, as in the Médoc [Bordeaux, France]. If this were the case, the wines from Castelnuovo Berardenga, the southernmost commune, would be the Pauillac of Chianti, for the wines have power, intensity and, at their best, great elegance and longevity."
- Oxford Companion to Wine, Third Edition