Tenuta San Leonardo

The story

The Lausanne Graduate and the Sassicaia Maker

Carlo Guerrieri Gonzaga had come back from Lausanne with an oenology qualification and a head full of French ideas, but it was Tuscany that finished his thinking. During his research trips south, he developed a long working relationship with Mario Incisa della Rocchetta, who was already making Sassicaia on the Bolgheri coast from Cabernet Sauvignon and Cabernet Franc in an era when planting Bordeaux grapes in Italy was an act of considered defiance. Carlo watched what Incisa della Rocchetta was doing, understood what the approach required in the vineyard and the cellar, and returned to the Adige valley determined to attempt the same thing in Trentino. The grape varieties he chose, the concrete fermentation vessels, the underground barrel maturation, the long ageing time: all of it was a version of what he had absorbed in those Tuscan visits. The wine that resulted carries his name today.

The Lausanne Graduate and the Sassicaia Maker

Carlo Guerrieri Gonzaga had come back from Lausanne with an oenology qualification and a head full of French ideas, but it was Tuscany that finished his thinking. During his research trips south, he developed a long working relationship with Mario Incisa della Rocchetta, who was already making Sassicaia on the Bolgheri coast from Cabernet Sauvignon and Cabernet Franc in an era when planting Bordeaux grapes in Italy was an act of considered defiance. Carlo watched what Incisa della Rocchetta was doing, understood what the approach required in the vineyard and the cellar, and returned to the Adige valley determined to attempt the same thing in Trentino. The grape varieties he chose, the concrete fermentation vessels, the underground barrel maturation, the long ageing time: all of it was a version of what he had absorbed in those Tuscan visits. The wine that resulted carries his name today.

From the atlas

Tenuta San Leonardo

At A Glance

The Producer

A former monastery on the left bank of the Adige has been the Guerrieri Gonzaga family residence for more than three centuries. The estate sits in the village of San Leonardo in Sarnis, a name that appears in documents from 1215, tucked into the southern end of Trentino where the Alps funnel both Alpine cold and the warmth rising off Lake Garda. It is from this unlikely thermal pocket that the family makes its flagship red: a Bordeaux-variety blend that remains one of the most argued bottles in northern Italy.

Carlo Guerrieri Gonzaga is the figure who fixed the wine's direction. He studied oenology in Lausanne, then made a series of research trips to France and Tuscany that changed what he wanted to grow. Those Tuscan years brought him into a long association with Mario Incisa della Rocchetta, the man behind Sassicaia, and Carlo returned to the Adige valley with the conviction that Bordeaux grapes could do something serious at San Leonardo. His son Anselmo now directs the winery, holding to the same approach.

Place

Trentino runs north from Verona toward the Brenner Pass. San Leonardo in Sarnis sits near its southern edge, where the Adige valley opens enough to let Lake Garda's moderating warmth travel up the valley floor. The Alps close off cold northern air. The Alps protect the estate from cold northern winds, and nearby Lake Garda contributes warmth. Bordeaux grapes struggle in cooler Trentino valleys further north; here they find the conditions they need.

The village name predates any current political or wine-law boundary by centuries, first documented in 1215. The estate produces wine outside the prestige DOC classifications that organise much of Trentino, which means the San Leonardo red carries the more flexible IGT designation rather than a named Trentino DOC. The label is the draw; the classification is not the point.

Soil And Site

The estate boundaries follow the perimeter of the former feudal settlement almost exactly. Within 300 hectares of land, including significant forest, 30 hectares are planted to vine and farmed organically. The vineyards spread along the slopes of the Lessini Mountains, facing Mount Baldo to the east, a peak known historically as the Garden of Europe for the density of plant species on its flanks. The forested land surrounding the vineyards forms a buffer zone that supports the estate's Biodiversity Friend certification, obtained in 2018.

Story

In 1894, Marchese Tullo Guerrieri Gonzaga married Gemma de Gresti. The de Gresti family had owned the San Leonardo property for close to two centuries. That marriage brought the Guerrieri Gonzaga line into regular residence in Trentino for the first time, joining two family histories inside the same set of walls. Without it, there is no Guerrieri Gonzaga winery.

Carlo, the generation that followed, made the wines what they are today. He trained formally in Lausanne and spent years in France and Tuscany absorbing how the serious estates worked. The Tuscan connection mattered most: a long relationship with Mario Incisa della Rocchetta, the creator of Sassicaia, crystallised Carlo's thinking about which grapes belonged at San Leonardo and how they should be handled. He came back to the Adige and built the estate's range around Bordeaux varieties, a choice that had no obvious precedent in Trentino at the time.

The organic turn came later. Conversion began in 2015, Biodiversity Friend certification followed in 2018, and Equalitas sustainable-winery certification arrived in 2024. Anselmo, who directs the estate today, inherited both the wine philosophy and the farming commitment from his father.

Vineyards And Cellar

Organic farming across the 30 vineyard hectares means no synthetic herbicides or pesticides reach the Lessini slopes. The Biodiversity Friend framework goes further, requiring the estate to actively maintain habitat for pollinators and other species across the wider property. Certification under Equalitas evaluates environmental, economic, and social criteria together, not farming practice alone.

In the cellar, the red wines ferment without cultured yeast. Fermentation starts spontaneously in concrete vats, runs for 15 to 18 days, and involves regular pumpovers and délestage, the technique of draining the fermenting juice away from the grape solids and then returning it, which breaks up the cap and extracts colour and tannin more gently than continuous pumping. After fermentation, the wines move to an underground barrel cellar built in 2001, where they spend at least 24 months in small oak barrels before release.

Wines

San Leonardo produces two principal wines. The flagship is the San Leonardo, a red built from Bordeaux varieties. Cabernet Sauvignon, Cabernet Franc, and Merlot form the frame, though the estate does not confirm precise percentages. The wine spends a minimum of two years underground in small oak, which integrates the oak into the wine's spice and earthy layers without overwhelming the fruit. At its best, the tannins are firm and fine-grained rather than heavy, and the freshness from the altitude sits alongside the riper, darker notes that the warm valley produces.

Vette di San Leonardo is a varietal Sauvignon Blanc. The 2024 vintage received a Wine Spectator tasting note; the style runs toward aromatic lift with citrus and herb rather than the richer, oakier profile of some Italian Sauvignon Blanc. A Carmenère cuvée also exists in estate materials, suggesting the family has explored other Bordeaux varieties beyond the flagship blend, though it sits at the edge of the documented range.

Gambero Rosso named San Leonardo its 2025 Winery of the Year, the most prominent annual award in the Italian wine guide landscape.

In The Glass

The flagship San Leonardo opens with restrained red fruit, dried spice, and an earthy, undergrowth character that reflects both the Bordeaux grape frame and the mountain air the vineyards sit in. The 2020 showed small red fruit, a subtle cherry-jam nuance beneath the spice, fine tannins, and a savory freshness on the finish. The mid-palate is firm without being heavy, and the finish carries the freshness typical of wines grown at altitude in a cool-influenced valley.

Vette di San Leonardo in the glass shows the aromatic, direct side of Sauvignon Blanc grown in a continental mountain climate: citrus peel, cut grass, some white stone fruit, and a clean, mouthwatering acid line that keeps the wine narrow and precise.

A Bottle To Understand It

Start with the San Leonardo red. It is a Bordeaux-variety blend grown on organically farmed mountain slopes, fermented without cultured yeast in concrete, and aged for at least two years in small oak underground before release. Nothing about that combination is accidental: Carlo built it from first principles after years of formal training and time alongside Mario Incisa della Rocchetta, and every step in the cellar is designed to let the valley's particular warmth and altitude show in the glass. The wine arrives with firm, fine-grained tannins, dried spice, earthy red fruit, and a freshness that cuts against the fullness of the mid-palate. It is a northern Italian red that tastes like it took its cues from Bordeaux and then grew into something with a mountain character of its own.

Anecdote

Carlo Guerrieri Gonzaga had come back from Lausanne with an oenology qualification and a head full of French ideas, but it was Tuscany that finished his thinking. During his research trips south, he developed a long working relationship with Mario Incisa della Rocchetta, who was already making Sassicaia on the Bolgheri coast from Cabernet Sauvignon and Cabernet Franc in an era when planting Bordeaux grapes in Italy was an act of considered defiance. Carlo watched what Incisa della Rocchetta was doing, understood what the approach required in the vineyard and the cellar, and returned to the Adige valley determined to attempt the same thing in Trentino. The grape varieties he chose, the concrete fermentation vessels, the underground barrel maturation, the long ageing time: all of it was a version of what he had absorbed in those Tuscan visits. The wine that resulted carries his name today.

Final Word

Tenuta San Leonardo is a 300-hectare former monastery on the Adige where a family has lived for more than three centuries and made wine with Bordeaux grapes for the last several decades. The flagship red is the estate's central argument: that southern Trentino, sheltered by the Alps and warmed by Lake Garda, can ripen Cabernet and Cabernet Franc to the point where two years underground in oak produces something serious and unhurried. Gambero Rosso's 2025 Winery of the Year award is the most visible external confirmation.

Sources

• https://www.sanleonardo.it/en/la-storia
• https://www.sanleonardo.it/en/la-tenuta
• https://www.sanleonardo.it/en/sostenibilita
• https://www.prnewswire.com/news-releases/san-leonardo-named-2025-winery-of-the-year-by-italys-top-wine-guide-gambero-rosso-302277826.html
• https://www.gamberorossointernational.com/news/art-and-lightness-this-is-what-san-leonardo-2020-tells-us/
• https://www.wine.com/product/tenuta-san-leonardo-vette-di-san-leonardo-sauvignon-blanc-2024/3081658