This mesmerizing portrait shows one of the outstanding spiritual leaders of seventeenth-century Rome—the founder of the Oratorians—and takes one into the interior life of a major artist. In an inscription Dolci records that he began work on May 26th, the saint’s feast day, and completed it eight days later for the church of San Firenze in Florence, adding, "I Carlo Dolci, painted the present image… beginning the first day of my thirtieth year 1645."