Martinengo Altarpiece also peeping from behind the throne, on the left. There is a total of ten saints, including St. Alexander, eponymous of the donor, portrayed with a scintillating armor and, perhaps, with the face of Martinengo himself. His wife Barbara is also portrayed next to him, as the saint with the same name. The two child angels in the low foreground are a typical element in Lotto's works. The work is signed and dated "Laurentius / Lotus / M.D.XVI". The following panels, located in other places, are usually associated with the work: Martinengo Altarpiece The Martinengo Altarpiece is a painting by
San Marco Altarpiece of cast shadows towards the bottom edges of the draperies in the painting, which are indicative of how Angelico gave the medieval equation of earthly and heavenly beauty new immediacy by translating it into the rational language of a representational style. In addition, as Angelico implies in other ways, glazing was a technique used to create yet another boundary between the real world and the pictorial illusion. San Marco Altarpiece The San Marco Altarpiece (also known as "Madonna and Saints") is a painting by the Italian early Renaissance painter Fra Angelico, housed in the San Marco Museum of Florence, Italy.