When Cosimo began building the Palazzo Medici in 1444, he passed over Brunelleschi and gave his preference to Michelozzo. Like the exterior of the Palazzo Comunale in Montefiascone, that of the Palazzo Medici follows the tradition of the Tuscan late-medieval palazzo, but without the more eye-catching symbols of civic power, which would have been incompatible with Cosimo's role as "primus inter pares" and "pater patriae". The palazzo's exterior is not articulated by Vitruvian orders, and its big arches of its ground floor are not aligned with the windows of the upper stories. Instead, Michelozzo focused on the contrast between surface textures, such as the contrast between "the natural rustication of the ground floor, the flat ashlared courses of the "piano nobile" and the smooth masonry of the upper storey." The exterior also differs from the palazzo in Montepulciano in its size, its more urbane character, and its massive classicizing cornice. "In its succession of dentils, egg-and-dart and consoles, Michelozzo directly followed the Temple of Serapis in Rome."