Protocolo is the entry-level label of the Eguren family the family behind Sierra Cantabria (Rioja), Señorío de San Vicente (Rioja Alavesa), and El Puntido (Rioja Alavesa). The Protocolo label covers Castilla VT (Castilla y León) from purchased fruit across the Duero plateau: an approachable Tempranillo-based red and white at accessible price points, positioned as the everyday Spanish table wine tier relative to the Eguren family's prestige Rioja labels.

Protocolo occupies the volume-accessible Spanish red tier: correct varietal character (Tempranillo, soft tannin, red fruit), reliable consistency, and clear food-service positioning. For programmes wanting an inexpensive Spanish red for by-the-glass service that carries a family pedigree (the Eguren name is well respected in Rioja), Protocolo provides the price-point anchor with the quality guarantee of a serious Spanish wine family.