Seeing this, the Pisans, who long before had had the idea and the wish to make a place of burial for all the inhabitants of the city, both noble and plebeian, either in order not to fill the Duomo with graves or for some other reason, caused Giovanni to make the edifice of the Campo Santo, which is on the Piazza del Duomo, towards the walls; wherefore he, with good design and with much judgment, made it in that manner and with those ornaments of marble and of that size which are to be seen; and because there was no consideration of expense, the roof was made of lead. And outside the principal door there are seen these words carved in marble:
A.D. MCCLXXVIII. TEMPORE DOMINI FREDERIGI ARCHIEPISCOPI PISANI, ET DOMINI TARLATI POTESTATIS, OPERARIO ORLANDO SARDELLA, JOHANNE MAGISTRO ÆDIFICANTE.
This work finished, in the same year, 1283, Giovanni went to Naples, where, for King Charles, he made the Castel Nuovo of Naples; and in order to have room and to make it stronger, he was forced to pull down many houses and churches, and in particular a convent of Friars of S. Francis, which was afterwards rebuilt no little larger and more magnificent than it was before, far from the castle and under the title of S. Maria della Nuova. These buildings being begun and considerably advanced, Giovanni departed from Naples, in order to return to Tuscany; but arriving at Siena, without being allowed to go on farther he was caused to make the model of the façade of the Duomo of that city, and afterwards the said façade was made very rich and magnificent from this model. Next, in the year 1286, when the Vescovado of Arezzo was building with the design of Margaritone, architect of Arezzo, Giovanni was brought from Siena to Arezzo by Guglielmino Ubertini, Bishop of that city, where he made in marble the panel of the high-altar, all filled with carvings of figures, of foliage, and other ornaments, distributing throughout the whole work certain things in delicate mosaic, and enamels laid on plates of silver, let into the marble with much diligence. In the middle is a Madonna with the Child in her arms, and on one side S. Gregory the Pope, whose face is the portrait from life of Pope Honorius IV; and on the other side is S. Donatus, Bishop and Protector of that city, whose body, with those of S. Antilla and of other Saints, is laid under that same altar. And because the said altar stands out by itself, round it and on the sides there are small scenes in low-relief from the life of S. Donatus, and the crown of the whole work are certain tabernacles full of marble figures in the round, wrought with much subtlety. On the breast of the said Madonna is a bezel-shaped setting of gold, wherein, so it is said, were jewels of much value, which have been carried away in the wars, so it is thought, by soldiers, who have no respect, very often, even for the most holy Sacrament, together with some little figures in the round that were on the top of and around that work; on which the Aretines spent altogether, according to what is found in certain records, 30,000 florins of gold. Nor does this seem anything great, seeing that at that time it was something as precious and rare as it could well be; wherefore Frederick Barbarossa, returning from Rome, where he had been crowned, and passing through Arezzo, many years after it had been made, praised it, nay, admired it infinitely; and in truth with great reason, seeing that, besides everything else, the joinings of this work, made of innumerable pieces, are cemented and put together so well that the whole work is easily judged, by anyone who has not much practice in the matters of the art, to be all of one piece. In the same church Giovanni made the Chapel of the Ubertini, a most noble family, and lords of castles, as they still are to-day and were formerly even more; with many ornaments of marble, which to-day have been covered over with other ornaments of grey-stone, many and fine, which were set up in that place with the design of Giorgio Vasari in the year 1535, for the supporting of an organ of extraordinary excellence and beauty that stands thereon.
