The solemn benefits of the Church could also be bought and sold, with the purchase of altars and windows and commemorative masses. In 1180 a stall was set up in Saint Mark’s Square for the sale of indulgences from time spent in Purgatory. Relics could be purchased. The seamless robe of the Saviour was valued at 10,000 ducats. The island of Crete was slightly cheaper. It was sold to Venice for a thousand silver marks.
Music and art, sculpture and opera, were all appraised by the criteria of profit and loss. The point was put plainly enough by the quintessentially Venetian artist of the eighteenth century, Giambattista Tiepolo, who suggested that painters should “please noble, rich people … and not other people who cannot buy paintings of great value.” Yet this could be construed as a moral, as well as an economic, imperative. Artists might, in the process of appealing to the wealthy, “be directed towards the sublime, heroic, towards perfection.” In Venice there was every reason to believe that the possession of money was compatible with the pursuit of glory. It might even be argued that the Renaissance itself, springing from the social and cultural life of the Italian cities, was the first movement towards the commodification of the western world; it was composed in part of art objects that could be ordered and purchased, that could be transferred from place to place, that were not unique to one city or one society. In Venice we can witness the rise of cultural materialism, which in turn created the first cosmopolitan culture. Music was part of the market, too, in which Vivaldi and Galuppi drove hard bargains. Opera was notably successful in Venice because, from the beginning, it was highly profitable. Speculators even made money from the leasing of boxes. It is hard to name one activity in the city that was not commercial in origin or in nature.
The painters of Venice, in their portraits and in their more expansive urban scenes, provided an inventory of costly material goods. The sitter is seen with his or her possessions, and the city is decked in ornate splendour. Bellini’s paintings depict the fine porcelain, and the sumptuous carpets, currently available in Venetian shops. These canvases were in turn placed within gilded and elaborate frames. It is not accidental that Venetian houses were known for their plenitude of pictures. Everything promised richness.
Artists came to the lagoon in order to learn the techniques of powdered gold, used in painting and in manuscript illumination. In Venice they would also find the finest pigments, brought from the East. Venetian painters, too, were well known for their skill in depicting the texture and appearance of the velvets and satins that were sold in the city itself. In a portrait of one doge, Bellini clothes him with the costly damask that had only recently been imported from the Levant. The sign of art as a commodity is the surface. In many cases the surface is without content or, more precisely, the nature of the subject is subordinated to the imperatives of surface decoration or ostentatious costliness. It is one of the attributes of capitalist enterprise that an object is no longer significant for its essence but for its exchange value. Here we may see one of the abiding characteristics of Venetian painting.
The notion of art as trade is of intrinsic importance to the cultural history of Venice. Most works were commissioned directly from the patron or patrons, and so the artists responded directly to what we might call consumer demand. There was an association, in the fifteenth century, between artistic theory and trading practice. There were manuals instructing the merchant on the right shades of dyes and spices, couched in precisely the terms that the artist would understand. In the activities of trade and art, objects become separated from the world; they are more intensely seen and judged. The consumer, too, judges by the senses.
There was also a connection between mercantile calculation and pictorial geometry; Piero della Francesca, after all, wrote