SculptureVarious sculptural works by the Bernini school, or various sculptors from the second half of the 1600s, are conserved in the palace, . The sculpture group is dominated by an absolute masterpiece: the Bust of Alexander VII by Melchiorre Caffà, the most gifted and ill-fated follower of Bernini, model for bronzes of the Metropolitan Museum di New York and of the Cathedral of Siena.
Traditionally attributed to Schor, cast iron braces of the fireplaces, while to Bernini we attribute medallions, the lamp with angels, replica of the model conserved in the Chigi chapel in Santa Maria del Popolo. We can also find works by other Bernini followers such as Giuseppe Mazzuoli (bust of Cardinal Sigmund and two busts of Alexander VII), Bernardo Fioriti (bust of cardinal Flavio), Orfeo Boselli (four busts of Roman emperors and empresses), Ercole Ferrata (carriage decoration). Also present in the collection are some plaster pieces from the 19thcentury.