The other day we went out with our Italian school to one of the Medici Palaces, this one belonging to Lorenzo the Magnificent. We discovered it is, in fact, just across the road from where we live in our own Palazzo (apparently we're in the servant's quarters).
As it the tour was conducted in all-Italian I can't actually tell you much about the place, but I was greatly impressed in one room with a very dramatic fresco on the ceiling.
The fresco was actually commissioned by the Ricardi family who bought the Palace from the Medici's. However, since owning a Medici Palace was something of a coup socially, the Medici's were given pride of place in the fresco.