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 Luca Altarpiece the figures and the "azzurro Todesco" (a blue pigment derived from copper) with which to inlay them. The work was completed within that or the following year. The polyptych is located in Pinacoteca di Brera, Milan. San Luca Altarpiece The San Lucas Altarpiece, also known as the San Lucas Polyptych, is a polyptych panel painting by Northern Italian Renaissance painter Andrea Mantegna. The altarpiece is a polyptych panel painting featuring 12 figures each in his or her own arch. The seven figures in the top row flank the central figure of Jesus Christ. The five beneath flank Saint Luke. On