RENAISSANCE AND MANNERISM C. I42O-C. I6OO as an engineer, a painter, a sculptor, a musician — as anything and everything, but not as an architect. Yet in his fertile mind architectural problems moved all the time. In Florence he had already sketched the plans of Brunelleschi's Sto. Spirito and S. Maria degli Angeli, and in Milan he looked carefully at the specifically Milanese solutions proposed by Filarete. The out- come were drawings in his rp=jl sketch-books showing several kinds of complex central structures, for instance one with a central octagon and eight chapels, each of the Milanese pkn with centre dome and little square corner bays (fig. 54), So here we find as against the central schemes worked out by Renaissance architects before Leonardo not a major contrasted ^ a nuraber of radiatins minor members, but a system of three grades each subordinate to the one above. Another project was to prove even more im- portant for the future. It appears in Leonardo's Paris Manuscript B and consists of a combination of a major Greek cross with minor Greek crosses in the corners (fig. 55). Bramante must have seen this, and remembered it years after he had left Mikn and moved to Rome. pi Apart from what Bramante had learnt from Leonardo, the change from the Milanese to the Roman atmosphere, which took place in 1499, altered his style decisively. His architecture assumed at once an austerity far beyond anything in Milan. This appears already in his first Roman designs, the cloister for S. Maria della Pace and the Tempietto of S. Pietro in Montorio. At S. Maria della Pace the courtyard has piers and attached columns in the Roman way on the ground floor, and an open gallery on the first whose sUm columns support a straight archi- trave instead of arches. At S. Pietro in Montorio Bramante appears even graver. The Tempietto of 1502 is the first monument of the High as against the Early Renaissance — truly a monument, i.e. more a sculptural than a strictly architectural achievement (pi. tm). It was built to mark the spot on which St, Peter was supposed to DE PRANCE, B, FOLIO 57 v.