St. Roch is one of eight saints Lorenzo Costa painted in the late 1400s. The graceful figures originally flanked a central devotional image on a monumental altarpiece, likely in or near Bologna, Italy. The saints are identifiable by their attributes and by their names, which are inscribed underneath them in a northern Italian dialect. Devotees used this information to find the saints who were most relevant to their personal needs. St. Roch points to a plague sore on his leg. This visual cue would have prompted the ill to pray to him for healing.