From the atlas
Tenuta San Guido
At A Glance
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| Location | Bolgheri, Castagneto Carducci, province of Livorno, Tuscany |
| Grapes | Cabernet Sauvignon, Cabernet Franc, Merlot, Sangiovese |
| Key Appellation | Bolgheri Sassicaia DOC |
| Range | Le Difese, Guidalberto, Sassicaia |
| First Commercial Vintage | 1968 |
| Estate Size | 2,500 hectares |
The Producer
Tenuta San Guido is the Bolgheri estate that planted Cabernet Sauvignon on the Tuscan coast in 1944, kept the wine private for more than two decades, and eventually earned Italy's only single-producer DOC. The family is the Incisa della Rocchetta line, connected through marriage to the della Gherardesca, one of the oldest aristocratic houses in Tuscany. Nicolò Incisa della Rocchetta holds the title of Honorary President. Day-to-day leadership now sits with Carlo Paoli, who has run production since 2009 and became CEO in 2025, and Alessandro Berlingieri, who has served as chairman since 2022.
The three bottles in the current range form a clear arc. Le Difese is the estate's introductory wine, blended from Cabernet Sauvignon and Sangiovese and designed for drinking without a waiting period. Guidalberto, a Cabernet Sauvignon and Merlot blend released from the 2000 vintage, adds body and ageing potential. Sassicaia, the Cabernet Sauvignon and Cabernet Franc flagship, is the wine around which the appellation was built.
Place
Bolgheri sits on the Tyrrhenian coast of Tuscany, in the province of Livorno. The Tenuta San Guido estate stretches 13 kilometres from the Bolgheri hills at around 400 metres down toward sea level, covering 2,500 hectares in total. The hills between Bibbona and Castagneto shelter the vineyards from cold northeasterly winds off the Apennines. In summer, breezes off the Tyrrhenian Sea cool the corridor, slowing ripening and preserving acidity in the fruit.
That physical setup is the argument for Cabernet Sauvignon working here. Mario Incisa della Rocchetta chose the grape because he admired the Bordeaux of the Medoc, and the coastal Bolgheri climate proved to be a closer match to the Gironde than anything deeper inland in Tuscany. West and southwest exposures catch afternoon light. The long growing season gives full phenolic ripeness without the heat accumulation that would flatten the wine. In 1994, Italian wine law formalised what the geography had already established: the Bolgheri Sassicaia DOC, the only appellation in Italy that exists for a single wine from a single estate.
Soil And Site
The Sassicaia vineyards lie between 100 and 360 metres in elevation, higher and cooler than the coastal plain. Soils are calcareous with significant marl content and a mix of stone and pebble, from which the wine takes its name: Sassicaia translates roughly as "stony place." Clay appears in parts of the five named parcels: Castiglioncello, Aia Nuova, Cerreta, Sassicaia di Sopra, and San Martino. Across the wider estate, soils also include alberese, a compact calcareous clay common in Tuscany, and gabbro, a dark igneous rock. Elevations range from 60 to 400 metres across the full estate, with west and southwest-facing slopes throughout.
The pebble and stone content in the upper parcels drains freely and warms during the day, contributing to even ripening. The calcareous and marl-rich soils add mineral character to the wine and support the firm acidity that runs through Sassicaia even in ripe vintages.
Story
Mario Incisa della Rocchetta married Clarice della Gherardesca in 1930 and moved to the Maremma in the early 1940s. In 1944, on a rocky hillside parcel at Castiglioncello di Bolgheri, he planted just over one hectare of Cabernet Sauvignon at roughly 400 metres above sea level. The model was Bordeaux, specifically the wines of Lafite, and the climate argument was his own: Bolgheri's coastal corridor was warm enough to ripen Cabernet but cooled enough by the sea to hold freshness.
For more than two decades, the wine was strictly private. Mario was not satisfied with early vintages, and there was no commercial ambition driving the project. The wine went to family and close friends, nothing more. Only after the winemaker Giacomo Tachis became involved and Mario's nephew Piero Antinori encouraged a commercial release did the 1968 vintage reach the market, twenty-three years after the first harvest.
The wine landed without a category. No Italian DOC covered Cabernet Sauvignon at Bolgheri, so the label carried the humblest legal designation available: Vino da Tavola, table wine. The classification reflected the law's gap, not the wine's quality. Ten years after the first sale, that gap became public knowledge.
Vineyards And Cellar
Sassicaia is drawn from five named parcels across the estate rather than one single vineyard. The parcels vary in elevation, soil composition, and aspect, and the multi-parcel approach is how the estate manages the character of the final blend. Cabernet Sauvignon and Cabernet Franc are grown in all five locations: Castiglioncello, the highest and coolest at around 360 metres; Aia Nuova, Cerreta, Sassicaia di Sopra, and San Martino at lower elevations with varying stone-to-clay ratios.
From the 1977 vintage, Sassicaia has been aged in 225-litre French Tronçais oak barriques. The 2021 vintage received 24 months of wood maturation; the 2022 received approximately 23 months. Both were then held in bottle before release. The barrique regime gives the wine its characteristic cedar and graphite register alongside the dark fruit and contributes to tannin integration over time.
Guidalberto spent more than twenty years in internal development before its first commercial vintage in 2000. The Cabernet Sauvignon and Merlot blend is aged in French oak as well, though for a shorter period than Sassicaia. Le Difese receives less oak treatment and is intended for drinking in its first few years.
Wines
The three bottles sit at clearly different positions in the range.
Le Difese is the estate's accessible wine, blending Cabernet Sauvignon with Sangiovese. The Sangiovese element brings a lifted, tart-edged red fruit character and slightly lighter body, making the wine approachable without extended cellaring. It introduces the estate's coastal Cabernet logic at a level that rewards immediate drinking.
Guidalberto replaces the Sangiovese with Merlot, producing a fuller, rounder wine with darker fruit and softer tannin. Independent notes on the 2023 describe dark fruit, herbal character, dusty moderate tannins, and considerable freshness for its weight. The wine is named for Guidalberto della Gherardesca, a family ancestor who transformed the agricultural landscape of the Bolgheri area in the early nineteenth century, building mills and churches and laying out the famous cypress avenue, the Viale dei Cipressi.
Sassicaia is the most complex and age-worthy bottle in the range. The Cabernet Franc component adds a lifted, iron-edged quality to the dark fruit of the Cabernet Sauvignon base. The multi-parcel blend means the wine carries more aromatic and textural range than a single-vineyard wine typically would. Twenty-plus months in French oak give cedar, tobacco, and graphite alongside the fruit, and the tannins are firm enough to reward five to fifteen years of cellaring in good vintages.
In The Glass
Sassicaia opens with dark cassis, cedar, and a faint graphite line that comes from the calcareous and stone-rich soils of the upper parcels. In the mouth, the Cabernet Franc adds a herbal lift: dried bay, iron, a slight tobacco note. Acidity is bright and persistent, which keeps the wine from feeling heavy despite the concentration. Tannins are firm and fine-grained, with the integration that comes from two years in Tronçais oak. The finish runs long and earthy, with cedar and black olive remaining after the fruit retreats.
Guidalberto is fuller and softer. The Merlot component rounds the Cabernet Sauvignon's edges and pushes the dark fruit forward: blackberry and plum, less cedar, more immediate. Tannins are riper and less demanding. The freshness in the 2023 vintage suggests the wine is drinkable within a few years of release.
Le Difese is lighter and brighter. The Sangiovese brings a red cherry and dried herb note that lifts the whole blend. It is the most immediate of the three, with the least oak presence and the shortest finish.
A Bottle To Understand It
Start with Sassicaia 2022. It is a blend of Cabernet Sauvignon and Cabernet Franc from the five estate parcels, aged approximately 23 months in 225-litre French Tronçais oak barriques before bottle ageing and release. The 2022 vintage produced a wine with deep colour, concentrated dark fruit, cedar and graphite on the nose, firm tannins that are already integrating, and a finish with genuine persistence. It is the wine that defines what the Bolgheri Sassicaia DOC means in practice: coastal Cabernet at elevation, aged in French oak. The 2022 represents the estate's current vintage style and is the clearest single-bottle entry into everything Tenuta San Guido built from 1944 onward.
Anecdote
In 1978, Decanter organised a blind tasting of more than thirty Cabernet-based wines from around the world. The wine that came first had no DOC, no official Italian classification, and no established international distribution. It was the 1972 Sassicaia, from an estate in the Maremma that had only released its first commercial vintage a decade earlier. The judges had no category to file it under: not Bordeaux, not a classified Tuscan growth, not anything the existing hierarchy could place. The result moved through the international trade press quickly. An Italian coastal estate wine, carrying a Vino da Tavola label because no better legal option existed, had beaten a field of wines with centuries of classification behind them. By 1994, Italian wine law had caught up: the Bolgheri Sassicaia DOC was created, the only appellation in Italy built around a single wine from a single estate.
Final Word
Tenuta San Guido is the estate that made Bolgheri a name. Mario Incisa planted Cabernet Sauvignon on a stony Tuscan hillside in 1944, spent two decades refining the wine privately, and released it into a market that had no category for it. The wine created its own category. Sassicaia now sits inside its own DOC, the only one in Italy with a single producer, and the three-bottle range traces a clear arc from immediate drinking through to a flagship built for a decade in the cellar.
Sources
- https://www.tenutasanguido.com/en/history
- https://www.tenutasanguido.com/en/sassicaia-en
- https://www.tenutasanguido.com/en/guidalberto-en
- https://vinepair.com/articles/sassicaia-italy-wine-guide/
- https://www.tenutasanguido.com/en/sassicaia-2022-en
- https://www.tenutasanguido.com/en/sassicaia-2021-en
- https://www.kenswineguide.com/wine_review/Tenuta-San-Guido-2023-Guidalberto
- https://weinrouten.de/weine/wine.php?id=978
- https://www.tenutasanguido.com/en/le-difese-en