Thereupon Pope Clement VII, proposing to make use of him in the most important operations of the wars that were stirring at that time throughout all Italy, gave him as a companion to Antonio da San Gallo, with a very good salary, to the end that they might go together to inspect all the places of greatest importance in the States of the Church, and, wherever necessary, might see to the construction of fortifications; above all, at Parma and Piacenza, because those two cities were most distant from Rome, and nearest and most exposed to the perils of war. Which duty having been executed by Michele and Antonio to the full satisfaction of the Pontiff, there came to Michele a desire, after all those years, to revisit his native city and his relatives and friends, and even more to see the fortresses of the Venetians. Wherefore, after he had been a few days in Verona, he went to Treviso to see the fortress there, and then to Padua for the same purpose; but the Signori of Venice, having been warned of this, became suspicious that San Michele might be going about inspecting those fortresses with a hostile intent. Having therefore been arrested at Padua at their command and thrown into prison, he was examined at great length; but, when it was found that he was an honest man, he was not only liberated by them, but also entreated that he should consent to enter the service of those same Signori of Venice, with honourable rank and salary. He excused himself by saying that he was not able to do that for the present, being engaged to his Holiness; but he gave them fair promises, and then took his leave of them. Now he had not been away long, when he was forced to depart from Rome--to such purpose did those Signori go to work in order to secure him--and to go, with the gracious leave of the Pope, whom he first satisfied in full, to serve those most illustrious noblemen, his natural lords. Abiding with them, he gave soon enough a proof of his judgment and knowledge by making at Verona (after many difficulties which the work appeared to present) a very strong and beautiful bastion, which gave infinite satisfaction to those Signori and to the Lord Duke of Urbino, their Captain General. After these things, the same Signori, having determined to fortify Legnago and Porto, places most important to their dominion, and situated upon the River Adige, one on one side and the other on the opposite side, but joined by a bridge, commissioned San Michele to show them by means of a model how it appeared to him that those places could and should be fortified. Which having been done by him, his design gave infinite satisfaction to the Signori and to the Duke of Urbino. Whereupon, arrangements having been made for all that had to be done, San Michele executed the fortifications of those two places in such a manner, that among works of that kind there is nothing better to be seen, or more beautiful, or more carefully considered, or stronger, as whoever has seen them well knows.