Dievole is one of Chianti Classico's most historically significant estates, with documented references dating to 1090 AD in the comune of Vagliagli, in the Castelnuovo Berardenga sub-zone — the southernmost and warmest sector of the DOCG. After decades of varying ownership, the property was acquired in 2012 by Argentine businessman Alejandro Bulgheroni, whose family portfolio spans Bodegas Caro in Mendoza and several other prominent wine estates worldwide. The investment brought a thoroughgoing renaissance to both the vineyards and the cellar.

The Vigna di Sessina is Dievole's single-vineyard Gran Selezione — the apex tier of Chianti Classico, requiring a minimum of 30 months aging before release. The 2020 is 100% Sangiovese, fermented over 14–15 days in raw concrete tanks of 75 hectoliters at a maximum temperature of 26°C, then aged for at least 24 months in 41-hectoliter untoasted French oak casks, followed by a minimum of 6 months of bottle refinement. The choice of untoasted large-format oak is deliberate — preserving the transparency and site-specificity of the Sangiovese rather than layering on oak character.

The 2020 vintage in Chianti Classico delivered a warm, precise growing season with excellent harvest conditions — resulting in wines of deep concentration, fine-grained tannin, and the bright acidity that is the hallmark of the Castelnuovo Berardenga sub-zone. Production was limited to 750 cases globally, with 225 cases reaching the United States.