The Tenuta San Guido is a 7,500-acre estate located in the province of Livorno on the western coastal outskirts of Tuscany near the village of Bolgheri. Marchese Mario Incisa della Rocchetta acquired it through his marriage to Clarice della Gherardesca in 1940. Fruit for Le Difese is selected from Tenuta San Guido estate’s younger vines. Fermentation for both varieties takes place on the skins in temperature-controlled stainless steel vats. The wine is matured in French and American oak barrels.