While Michelagnolo was at Carrara and was having marble quarried for the tomb of Julius, thinking at length to finish it, no less than for the façade, a letter was written to him saying that Pope Leo had heard that in the mountains of Pietrasanta near Seravezza, in the Florentine dominion, at the summit of the highest mountain, which is called Monte Altissimo, there were marbles of the same excellence and beauty as those of Carrara. This Michelagnolo already knew, but it seems that he would not take advantage of it because of his friendship with the Marchese Alberigo, Lord of Carrara, and, in order to do him a good service, chose to quarry those of Carrara rather than those of Seravezza; or it may have been that he judged it to be a long undertaking and likely to waste much time, as indeed it did. However, he was forced to go to Seravezza, although he pleaded in protest that it would be more difficult and costly, as in truth it was, especially at the beginning, and, moreover, that the report about the marble was perhaps not true; but for all that the Pope would not hear a word of objection. Thereupon it was decided to make a road for several miles through the mountains, breaking down rocks with hammers and pickaxes to obtain a level, and sinking piles in the marshy places; and there Michelagnolo spent many years in executing the wishes of the Pope. Finally five columns of the proper size were excavated, one of which is on the Piazza di S. Lorenzo in Florence, and the others are on the sea-shore. And for this reason the Marchese Alberigo, who saw his business ruined, became the bitter enemy of Michelagnolo, who was not to blame. Michelagnolo, in addition to these columns, excavated many other marbles there, which are still in the quarries, abandoned there for more than thirty years. But at the present day Duke Cosimo has given orders for the road to be finished, of which there are still two miles to make over very difficult ground, for the transportation of these marbles, and also a road from another quarry of excellent marble that was discovered at that time by Michelagnolo, in order to be able to finish many beautiful undertakings. In the same district of Seravezza he discovered a mountain of variegated marble that is very hard and very beautiful, below Stazema, a village in those mountains; where the same Duke Cosimo has caused a paved road of more than four miles to be made, for conveying the marble to the sea.