Stefano Antonucci's Cantina Santa Barbara is a leading estate in the Serra de' Conti area of the Marche (Ancona province), producing from the region's indigenous varieties Verdicchio di Matelica and Verdicchio dei Castelli di Jesi for whites; Lacrima di Morro d'Alba and Montepulciano d'Abruzzo for reds. The estate is known for premium Verdicchio expressions at multiple quality tiers, including the flagship Stefano Antonucci Verdicchio dei Castelli di Jesi.

Verdicchio dei Castelli di Jesi is one of Italy's most underappreciated quality white wines: mineral, saline, high-acid, with almonds and citrus, and genuine ageing potential in the premium expressions. Santa Barbara produces Verdicchio with more ambition and precision than the large-volume cooperative productions that dominate the DOC commercially. For programmes building a Marche white wine section alongside the more familiar Pecorino (Velenosi), Santa Barbara provides the Verdicchio dei Castelli di Jesi quality reference.