Eastern side of gardens, gallery for the display of sculpture by Bertel Thorwaldsen; The Palazzo Barberini, begun in December 1628, was the last and most complex of Maderno's palace designs, although it was largely executed by others. The basic idea for this palace, with two separate wings in an H-plan, was conceived by its owner, Taddeo Barberini, nephew of Pope Urban VIII. The site is sloping and the piazza lies on a lower level. Although many others contributed to the design, Maderno was in charge of design development. Here again can be seen his characteristic planning of eminently functional suites, closed axes (most notably in the deep, apsed entrance portico, the passage through which was cut only in the 1670s), the complex, three-d...