San Giusto a Rentennano is in Gaiole in Chianti, near Siena, in Tuscany. In medieval times the state was a convent, but in 1914 it was bought by the Martini di Cigala family. The family still owns and operates the 77-acre estate in the heart of the Chianti zone. The estate’s signature wines are its Chiantis, though it also makes a Merlot and a white blend. Gambero Rosso, Italy’s leading wine journal, calls the estate “one of the most classic producers in the zone, with a solid reputation based on rigorous authenticity and characterized by gutsy wines that make a point of flaunting their strong bond with the land.”