While the arcaded courtyard is considered a fine example of Renaissance art, it has subtle eccentricities—hints of Polish Gothic within its form, a steeply hipped and projecting roof (necessary in a northern climate) counterbalancing the soaring effect created by the uppermost arcade being higher than those below (a feature unknown in Italy) to give the courtyard a uniquely Polish renaissance look. The extra height of the uppermost arcade is truly unusual as it indicates and places the piano nobile on the third floor, whereas the rules of Italian Renaissance architecture place it on the second floor; again this indicates that while the design was inspired by Italians, the Polish artistic and cultural tradition was not extinguished in the execution.