The Giovanni Barracco Museum of Ancient Sculpture is part of the Museums in the Municipality of Rome system and is located in the Parione district, near Campo de’ Fiori. It collects various works of classical and Near Eastern art, donated to the Municipality by Baron Giovanni Barracco in 1904.
The building, whose facade is attributed to Antonio da Sangallo the Younger, was built in 1523 by a Breton prelate Thomas Le Roy (Latinized in Tomas Regis), who for having worked well on the stipulation of the concordat between Pope Leo X and Francis I at The day after the battle of Marignano, he was authorized by the latter to enrich his emblem with the lily of France (brought to Rome by the Farnese family) – which in fact recurs throughout the decoration of the building, and from which it most likely derives from the building the name of “Little Farnesina”.
After various hereditary and judicial events, in 1671 the property passed to the Silvestri, whose emblem with the scorpion appears on the first floor, and was finally expropriated in 1885 by the Municipality of Rome, which was tracing the new road axis of Corso Vittorio to connect Piazza Venezia at St. Peter’s. The building was saved from the demolitions that affected the surrounding buildings, freed from elevations that had been added to it, restored and integrated with a new facade on Corso Vittorio built in the same style and the current short entrance stairway. These works were carried out “aere publico” and concluded in 1901, as evidenced by the inscription affixed to the stringcourse cornice along Corso Vittorio. (wiki)