PIERO DELLA FRANCESCA (b. 1416, Borgo San Sepolcro, d. 1492, Borgo San Sepolcro)
PolyptychA painting (usually an altarpiece) made up of a number of panels fastened together. Some polyptychs were very elaborate, the panels being housed in richly carved and decorated wooden frameworks. Duccio's "Maestà" (1308-1311) is a well-known example. of St Augustine: Augustinian Saint c. 1460 TemperaA method of painting in which the pigments are mixed with an emulsion of water and egg yolks or whole eggs (sometimes glue or milk). Tempera was widely used in Italian art in the 14th and 15th centuries, both for panel painting and fresco, then being replaced by oil paint. Tempera colors are bright and translucent, though because the paint dried very quickly there is little time to blend them, graduated tones being created by adding lighter or darker dots or lines of color to an area of dried paint. on panelTerm in painting for a support of wood, metal, or other rigid substance, as distinct from canvas. Until the adoption of canvas in the 15th century nearly all the movable paintings of Europe were executed on wood, and even up to the beginning of the 17th century it is probable that as much painting was done on the one support as on the other. Painters who worked on a small scale often used copper panels (Elsheimer is a leading example), and in the colonial art of South America copper and tin and even lead and zinc were used. On a larger scale, slate has occasionally been used as a support, notably by Rubens for his altarpiece for Sta Maria in Vallicella (the Chiesa Nuova) in Rome; the picture he originally painted was said to reflect the light unpleasantly and slate was used for the replacement to produce a more matt finish. For wood panels the Italian masters of the Renaissance preferred white poplar, while oak was the most common wood used in northern Europe. Many other types were used, however; analysis of the contents of art galleries has yielded a long list, including beech, cedar, chestnut, fir, larch, linden, mahogany, olive, and walnut. In the 20th century cedar, teak, and dark walnut are favourites, and modern painters have also used plywood, fibre-board, and other synthetic materials as supports., 39 x 28 cm Frick Collection, New York
The predellaAn Italian word for the small strip of paintings which forms the lower edge or socle of a large altarpiece (pala). Such a polyptych consists of a principal, central panel with subsidiary side and/or top panels, and a predella: the predella usually has narrative scenes from the lives of the Saints who are represented in the panels above. Because of the small size of predelle - they are not usually more than 25-30 cm high, though often relatively very wide - they were frequently used for pictorial experiments that the painter did not wish to risk making in the larger panels. The first datable example seems to be that in Simone Martini's S. Louis of Toulouse (1317, Naples). of the Polyptych of St Augustine was originally formed by three panels now in the Frick collection, New York: St Monica, the CrucifixionAn important method of capital punishment, particularly among the Persians, Seleucids, Jews, Carthaginians, and Romans from about the 6th century BC to the 4th century AD. Constantine the Great, the first Christian emperor, abolished it in the Roman Empire in AD 337, out of veneration for Jesus Christ, the most famous victim of crucifixion. There were various methods of performing the execution. Usually, the condemned man, after being whipped, or "scourged," dragged the crossbeam of his cross to the place of punishment, where the upright shaft was already fixed in the ground. Stripped of his clothing either then or earlier at his scourging, he was bound fast with outstretched arms to the crossbeam or nailed firmly to it through the wrists. The crossbeam was then raised high against the upright shaft and made fast to it about 9 to 12 feet (approximately 3 metres) from the ground. Next, the feet were tightly bound or nailed to the upright shaft. A ledge inserted about halfway up the upright shaft gave some support to the body; evidence for a similar ledge for the feet is rare and late. Over the criminal's head was placed a notice stating his name and his crime. Death, apparently caused by exhaustion or by heart failure, could be hastened by shattering the legs (crurifragium) with an iron club, so that shock and asphyxiation soon ended his life. and and Augustinian Saint. These panels are clearly reminiscent of Piero's synthetic style adopted for a small scale, which characterized the predella and the outer decorations of the Polyptych of St Anthony.