The Barberini and Corsini are Florentines, and came to Rome with Urban VIII. and Clement XII. The Barberini villa at Castel Gandolfo and the palace in Rome are familiar to all visitors. The grounds of the Corsini villa on the Janiculum have been recently converted into a public drive; the Corsini palace in Trastevere on the river bank is famous for its library and picture galleries. Opposite to it is the Farnesina palace built in the sixteenth century by the rich banker Agostino Chigi. Here it was that he gave a famous banquet and, desiring to make a display of his enormous wealth, bade his lackeys throw the silver dishes into the river at the end of each course under the eyes of his astonished guests who did not guess that nets had been cunningly laid to catch them as they sank. The Albani kinsmen of Clement XI. came from Urbino; the Rospigliosi from Pistoja with Clement IX.; the Odescalchi from Como with Innocent XI.; the Doria Pamphili from Genoa. This papal aristocracy occupied a unique position. Relatives of popes, who were at the same time reigning princes, they assumed royal rank and lived with a magnificence and luxury unsurpassed in Europe. In addition to the titles of Roman nobility bestowed upon them with a lavish hand, many of them became grandees of Spain and their names were inscribed in the "golden book" of the Capitol. They bought country estates and suburban villas and built great palaces in the town. These stately Renaissance buildings, some of them larger than many royal dwellings, are grouped at the base of the Capitol and along the Corso, the most important and at one period the only great street in Rome. The Palazzo di Venezia, the home of the Venetian Paul II., the Altieri, the Grazioli, and the Bonaparte palaces, the latter originally the property of the Rinuccini, stand, a stately group, on the Piazza di Venezia and the Via del Plebiscito. The series is continued along the Piazza dei SS. Apostoli with the Colonna, the Balestra, the Odescalchi, and the Ruffo palaces. Greatest among those in the Corso is the Palazzo Doria Pamphili. Here also are the Ruspoli, Fiano, Chigi, Sciarra, Salviati, Ferraioli, and Theodoli palaces, and before its demolition to enlarge the Piazza Colonna, the Piombino. The Costaguti in the Piazza Tartaruga, the Antici-Mattei, the Longhi and the Gaetani palaces, the latter in the _Via delle Botteghe Oscure_, "the street of dark shops," are grouped at the foot of a further slope of the Capitol. More to the west, stand the huge Farnese palace the present seat of the French embassy and the Cancelleria built by Cardinal Riario nephew of Sixtus IV. and still papal property. The Simonetti and Falconieri palaces are built upon the banks of the Tiber close by, and face Via Giulia.