San Giusto a Rentennano is a historic estate located in Gaiole in Chianti, on the southern edge of the Chianti Classico zone, with origins dating back to the Middle Ages when it functioned as a Cistercian monastery. Today, it is owned and managed by the Martini di Cigala family, who have shaped the estate into one of the most respected producers in the region, with a strong focus on traditional varieties and terroir expression.