Meanwhile, as the nuptials were in progress, Tribolo received letters from Bologna, in which Messer Pietro del Magno, his devoted friend, besought him that he should consent to go to Bologna, in order to make for the Madonna di Galliera, where a most beautiful ornament of marble was already prepared, a scene likewise of marble three braccia and a half in extent. Whereupon Tribolo, happening to have nothing else to do at that time, went thither, and after making a model of a Madonna ascending into Heaven, with the Apostles below in various attitudes, which, being very beautiful, gave great satisfaction, he set his hand to executing it; but with little pleasure for himself, since the marble that he was carving was that Milanese marble, saline, full of emery, and bad in quality; and it seemed to him that he was wasting his time, without feeling a particle of that delight that men find in working those marbles which are a pleasure to carve, and which in the end, when brought to completion, show a surface that has the appearance of the living flesh itself. However, he did so much that it was already almost finished, when I, having persuaded Duke Alessandro to recall Michelagnolo from Rome, and also the other masters, in order to finish the work of the sacristy begun by Clement, was arranging to give him something to do in Florence; and I would have succeeded, but in the meantime, by reason of the death of Alessandro, who was murdered by Lorenzo di Pier Francesco de' Medici, not only was this design frustrated, but the greatness and prosperity of art were thrown into utter ruin.