In the scheme of the Palazzo Cornaro an Ionic order and a Corinthian order frame in the round-headed windows of the upper stories. The columns of these orders are set in pairs, each pair having a plinth and pedestal in common. On the side walls of the building these orders are returned to the extent of one bay, which brings four columns together at the angles with clumsy effect. The frieze of the uppermost entablature is widened, as in the Library of St. Mark, but its surface is plain save for a series of oval openings which light a low attic. The high rusticated basement, which includes a mezzanine, has square-headed windows framed by a rusticated Doric order resting on a projecting sill supported on plain consoles; and over each of these a low rectangular window, flanked by elongated consoles on square blocks set upon the entablature of the window below, lights the mezzanine. A curved pediment over each of the lower windows, between the blocks that support the flanking members of the windows above, gives further awkwardness to the total scheme (Fig. 69). Barbaric compositions such as this were now to become of frequent occurrence in the architecture of the later Renaissance. While the designers were eliminating the mediæval forms more completely than their predecessors had done, they were at the same time departing more widely from classic models, and introducing many monstrosities of composition, from the influence of which modern art has greatly suffered. [Illustration: FIG. 70.--Two bays of the Porta del Palio.]