Mariondino is an MGA in the commune of Castiglione Falletto, located on southeast-facing slopes with compact clay-limestone soils and moderate elevation. The site produces Barolo with a refined structure, typically showing bright red fruit, floral lift, firm tannins, and a linear mineral thread. Mariondino is appreciated for offering a balance between the power of neighbouring crus and the elegance typical of Castiglione Falletto, resulting in wines that age well and develop layered complexity over time.