You probably already know about Montevertine. It has been one Tuscany's brightest stars for decades, on the forefront of every movement that has made the region what it is today. They stepped out of the consorzio because of their belief in Sangiovese, helping to create the Super-Tuscan movement. They have always sought to express their distinct Radda terroir, laying the foundation for today's growing interest in Chianti's varied crus (and especially in Radda!).
What importer Rosenthal Wine Merchant has to say about this wine...
The prestige wine of Montevertine is only produced in outstanding vintages. This ultimate wine is aged in large Slavonian oak barrels for 18 months and then racked into small French oak (Allier) barrels for the final six month stage of its élevage. It is produced primarily from a two hectare vineyard planted in 1968 exclusively to Sangiovese vines with a north-northeast exposure.