The entrance is located in the second bay from the left of the palace's seven-bay façade. The off-center placement of the door reflects the layout of the existing Medieval palace, and probably, an intention of adding four bays if the property on the left became available.
The piano nobile is decorated by a profusion of relief sculpture, which decorates the upper walls between the capitals and fills the frieze, the spandrels, and the lunettes. The architectural order selected is the most ornate of the orders, the Corinthian order.
A variety of vertically arranged moldings add to the complication of the ornamental scheme.
Because Sanmicheli spent nearly three decades in and near Rome, he was familiar with the latest architectural trends and palaces.
Sanmicheli's Palazzo Bevilacqua has little in common with Bramante's Palazzo Caprini in Rome except the general use of rustication on the ground story and the inclusion of the orders on the piano nobile.
The columns of the piano nobile are fluted in three different ways: vertically, spirally to the left, and spirally to the right.
Except for the use of a single vertically fluted column at each end, the spirally fluted columns are rotated with the vertically fluted columns in sequences of twos: two spirals, then two verticals, and finally two more spirals.
The direction of each spiral column is reversed from the last one so that any two adjacent spiral columns mirror each other.
III \\\ /// III III \\\ /// III
This combination had been used in a simple alternation by Raphael at the Palazzo Branconio dell'Aquila in Rome and the Palazzo Pandolfini in Florence. At the Palazzo Bevilacqua, Sanmicheli arranged the pediments as inner and outer pairs on alternate bays.
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