mosaic, that look down therein. This building is flanked on one of the sides by two sacristies, and by a very high campanile, namely, five times as high as it is broad. It had on top a very high octagonal spire, but this was removed because it threatened to fall. This whole work was brought to a finish in the space of four years, and no more, by the genius of Maestro Jacopo Tedesco and by the solicitude of Frate Elia, after whose death, to the end that such a pile might never through any lapse of time fall into ruin, there were built round the lower church twelve very stout towers, and in each of these a spiral staircase that climbs from the ground up to the summit. And in time, afterwards, there were made therein many chapels and other very rich ornaments, whereof there is no need to discourse further, since this is enough on this subject for the present, and above all because everyone can see how much of the useful, the ornamental, and the beautiful has been added to this beginning of Maestro Jacopo's by many supreme Pontiffs, Cardinals, Princes, and other people of importance throughout all Europe. Now, to return to Maestro Jacopo; by means of this work he acquired so great fame throughout all Italy that he was summoned by those who then governed the city of Florence, and afterwards received with the greatest possible friendliness; although, according to the use that the Florentines have, and had still more in ancient times, of abbreviating names, he was called not Jacopo but Lapo throughout all the course of his life; for he dwelt ever with his whole family in that city. And although he went at diverse times to erect many buildings throughout Tuscany, such as the Palace of Poppi in the Casentino, for that Count who had had for wife the beautiful Gualdrada, and for her dower, the Casentino; and for the Aretines, the Vescovado,[7] and the Palazzo Vecchio of the Lords of Pietramala; none the less his home was always in Florence, where, having founded in the year 1218 the piers of the Ponte alla Carraja, which was then called the Ponte Nuovo, he delivered them finished in two years; and a little time afterwards the rest was finished of wood, as was then the custom. And in the year 1221 he gave the design for the Church of S. Salvadore del Vescovado, which was begun under his direction, and that of S. Michele in Piazza Padella, where there are certain sculptures in the manner of those times. Next, having given the design for draining the waters of the city, having caused the Piazza di S. Giovanni to be raised, having built, in the time of Messer Rubaconte da Mandella, a Milanese, the bridge that retains the same man's name, and having discovered that most useful method of paving streets, which before were covered with bricks, he made the model of the Palace, to-day of the Podesta, which was then built for the Anziani. And finally, having sent the model of a tomb to Sicily, to the Abbey of