Passing now under the Column of the Trinita across the Piazza between the two palaces, Bartolini Salimbeni and Buondelmonte on the left, and Palazzo Spini on the right, you come into Borgo Santi Apostoli, where, facing the Piazzetta del Limbo, is the little church de' Santi Apostoli, which, if we may believe the inscription on the facade, was founded by Charlemagne and consecrated by Turpin before Roland and Oliver. However that may be, it is, with the exception of the Baptistery, the oldest church on this side Arno, and already existed outside the first walls of the city. Within, the church is beautiful, and indeed Brunellesco is reported by Vasari to have taken it as a model for S. Lorenzo and S. Spirito. In the sacristy lies the stone which Mad Pazzi brought from Jerusalem, and from which the Easter fire is still struck in the Duomo; while in the chapel to the left of the high altar is a beautiful Tabernacle by the della Robbia, and a monument to Otto Altoviti by Benedetto da Rovezzano. The Altoviti are buried here, and their palace, which Benedetto built for them, is just without to the south. This Borgo SS. Apostoli and the Via Lambertesca which continues it are indeed streets of old palaces and towers. Here the Buondelmonti lived, and the Torre de' Girolami, where S. Zanobi is said to have dwelt, still stands, while Via Lambertesca is full of remembrance of the lesser guilds. Borgo SS. Apostoli passes into Via Lambertesca at the corner of Por S. Maria, where of old the great gate of St. Mary stood in the first walls, and the Amidei had their towers. It must have been just here the Statue of Mars was set, under the shadow of which Buondelmonte was murdered so brutally; and thus, as Bandello tells us, following Villani, began the Guelph and Ghibelline factions in Florence. Just out of Via Lambertesca, on the left, is the little Church of S. Stefano and S. Cecilia--S. Cecilia only since the end of the eighteenth century, when that church was destroyed in Piazza Signoria; but S. Stefano, _ad portam ferram_, since the thirteenth century at any rate. This church seems to have been confused by many with the little Santo Stefano, still, I think, a parish church, though now incorporated with the abbey buildings, of the Badia. You pass out of Via Lambertesca by Via de' Lanzi, coming thus into Piazza Signoria; then, passing Palazzo Uguccione, you take Via Condotta to the right, and thus come into Via del Proconsolo at the Abbey gate.