The Castelgiocondo estate is the Brunello estate owned by Marchesi di Frescobaldi. It lies on the southwestern slope of Montalcino, at elevations ranging from 600 to 1,200 feet. Diverse soils and ideal exposure bring beautiful ripeness and development to the indigenous Sangiovese Grosso. This wine is always a classic, and this 2015 is a standout.

James Suckling scored this 97 points saying "This is a pure and beautiful Brunello with super fine and abundant tannins that are comprehensive and expansive. Builds on the palate. Full body. Round and firm with beautiful fruit and length. Lively and vivid. From organically grown grapes. Needs a year or two to soften, but already gorgeous."

Wine Enthusiast Magazine awarded this an Editors' Choice and scored it 96 points saying "Aromas of ripe dark-skinned berry, violet, underbrush and warm spice emerge in the glass, along with a whiff of camphor. Full bodied and enveloping, the structured palate delivers raspberry jam, dried black cherry, licorice and tobacco alongside firm fine-grained tannins. It closes on an espresso note. Drink 2023–2030."