THE EVOLUTION OF THE STAIRCASE The very latest phase of the Gothic style with its new appreciation of space had sometimes tried to endow them with spatial expression. A proper show however was only made of staircases when Italian splendour had revealed to the peoples of the West the crabbed tight- ness of mediaeval forms. Then the French of Francis Ts time could enjoy the exterior newel staircase of Blois (pi. LXXIX) and the splendid interior double newel staircase—two parallel spirals within the same well—in the centre of the symmetrical palace of Chatn- bord, and the Spanish, bolder still, could create shortly after 1500 a new type of staircase to be of the greatest influence in the centuries to come: the squared-up newel staircase, with three straight flights of steps around a spacious open well and the landing on the fourth side. This type occurs for the first time in Enrique de Egas's Hospital of the Holy Cross at Toledo (1504-14 ; fig. 75) and in Michele Carlone's castle of Lacalahorra (1508-12). Now Michele Carlone came from Genoa, and it has often been said that the Genoese, who made wide and airy staircases open towards courtyards the happy rule in the later i6th century, were the inventors of this influential type. No case has however yet been pointed out quite as early as the first Spanish examples. Moreover, Spanish architects also seem to have conceived the other most spectacular Baroque type of stair- case, and conceived it as early as the 1560*5 (fig. 91). This type, which runs in a large oblong cage, starting with two straight arms and then, after turning by 180 degrees at the landing, leads up to the upper floor in one arm between the two below (or starting with one and continuing with two), appears to my knowledge for the very first time in Juan Bautista de Toledo's and Francisco de Herrera's Escorial (1563-84). It is eminently characteristic that these staircases, in which space is experienced most vividly by those who ascend them or descend them, originated outside Italy. The Italian Renaissance had no use for them, no use for this flow of spatial strata or compart- ments into one another. The best Italian Renaissance staircases, such as the one in the Palazzo Farnese (fig. 57), were comfortably wide, but led up between solid walls. Bramante's most interesting staircase, in the Vatican Palace, was of the traditional newel type, though with a wide open well and of gentle rise and generous measurements. Serlio and Palladio followed Bramante in this, although they knew and used the Spanish square three-flight type. However their hearts were not in staircase design. The only innovation in their books which is worth noting because it is so characteristically Mannerist E.A.—ii " I43