Ss. Prokulus, Firmus, Rusticus of Verona and an Angel

Saints Proculis, Firmus, and Rusticus were early Christian martyrs venerated in the Verona region, making their representation in an altarpiece for Bergamo Cathedral — a related northern Italian diocese — a devotionally appropriate commission. Painted in 1704, this altarpiece belongs to the early phase of Ricci's mature career when he was actively competing for important ecclesiastical commissions across northern Italy. The inclusion of an angel completing the group follows Baroque altarpiece conventions in which heavenly presences descend to affirm the martyrs' glory and mediate between earthly devotion and divine reward. Ricci's treatment of Veronese saints in a Bergamo setting connects to the rich tradition of Counter-Reformation altarpieces in the Lombard-Venetian region, where the commemoration of local martyrs served important civic-religious functions.

Altarpiece paintings required a different register than cabinet paintings: clear legibility from a distance, conventional figure placement, and the hierarchical arrangement of saints and angels in a way that guided devotional attention upward toward the divine. Ricci's 1704 execution shows his characteristic Venetian palette — warm reds and deep blues for the saints, pale luminous whites for the angel — organized to create the ascending visual rhythm appropriate to the altarpiece format.