"Saint Bishop, Spanish School (early 16th Century)"
An appraisal written by Ferdinando Bologna in the 1970s attributes the work to Riccardo Quartararo. More recent studies have compared this gold background to the school of the so-called Master of the Legend of Sant'Orsola, a Flemish painter active in the last quarter of the 15th century, and to the sphere of Antoine de Luhny, painter active for a long time in Piedmont in the second half of the 15th century, serving the most refined and prestigious clients of the second half of the 15th century, active in the field of miniature, stained glass, panel and mural painting. Despite this, Frédéric Elsig, author of the monograph devoted to Antoine de Luhny published in 2018, identified in this holy bishop blessing an additional compartment of an altar which originally included two other panels (53 x 45 cm) representing a Virgin in prayer and a San Giacomo Maggiore, works proposed in Rome by Finarte in 2007, works attributable to a Spanish painter (possibly Castilian) and datable to the first decade of the 16th century.