The Sesto Oltr'arno, the Quartiere di S. Spirito as it was called later, was never really part of the city proper, but rather a suburb surrounded, as Florence itself was, by wall and river. The home for the most part of the poor, though by no means without the towers and palaces of the nobles, it seems always to have lent itself readily enough to the hatching of any plot against the Government of the day. Here in 1343 the nobles made their last stand, here the signal was given for the Ciompi rising, and here Luca Pitti built his palace to outdo the Medici. If you cross Arno by the beautiful bridge of S. Trinita, the first street to your left will be Borgo S. Jacopo, the first palace that of the Frescobaldi, whom the Duke of Athens brought into Florence after their exile. This palace, as well as the Church of S. Jacopo close by, where Giano della Bella's death was plotted, were given in 1529 to the Franciscans of S. Salvatore, whose convent had suffered in the siege. S. Jacopo, which still retains a fine romanesque arcade, was originally a foundation of the eleventh century. It seems to have been entirely rebuilt for the friars and the palace turned into a convent in 1580, and again to have suffered restoration in 1790. Close by is a group of old towers, still picturesque and splendid. Turning thence back into Via Maggio, and passing along Via S. Spirito and Via S. Frediano, you come at last on the left into Piazza del Carmine, before the great church of that name. The church of the Carmine and the monastery now suppressed of the Carmelites across Arno were originally built in 1268, with the help of the great families whose homes were in this part of the city,--the Soderini, the Nerli, the Serragli; it remained unfinished for more than two centuries, and in 1771 it was unhappily almost wholly destroyed by fire, only the sacristy and the Brancacci Chapel escaping. Famous now because there Fra Lippo Lippi lived, and there Masolino and Masaccio painted, it is in itself one of the most meretricious and worthless buildings of the eighteenth century, full of every sort of flamboyant ornament and insincere, uncalled-for decoration; and yet, in spite of every vulgarity, how spacious it is, as though even in that evil hour the Latin genius could not wholly forget its delight in space and light. It is then really only the Brancacci Chapel in the south transept that has any interest for us, since there, better than anywhere else, we may see the work of two of the greatest masters of the first years of the Quattrocento. [Illustration: PONTE VECCHIO]