This Gian Girolamo, then, was the son of Paolo, the cousin of Michele, and, being a young man of very beautiful genius, was instructed with such diligence by Michele in the matters of architecture, and so beloved by him, that he would always have the young man with him in all undertakings of importance, and particularly in fortifications. Having therefore become in a short time so excellent, with the help of such a master, that the most difficult work of fortification could be entrusted to him, in which manner of architecture he took particular delight, his ability was recognized by the Signori of Venice, and he was placed with a good salary among the number of their architects, although he was very young, and then sent now to one place and now to another, to inspect and restore the fortresses of their dominion, and at times to carry into execution the designs of his kinsman Michele. And, among other places, he took part with much judgment and labour in the fortification of Zara, and in the marvellous fortress of S. Niccolo at Sebenico, placed, as has been mentioned, at the mouth of the port; which fortress, erected by him from the very foundations, is held to be, for a private fortress, one of the strongest and best designed that there are to be seen. He also reconstructed after his own designs, with the advice of his kinsman, the great fortress of Corfu, which is considered the key of Italy on that side. In this fortress, I say, Gian Girolamo rebuilt the two great towers that face towards the land, making them much larger and stronger than they were before, with open embrasures and platforms that flank the ditch in the modern manner, after the invention of his kinsman. He then caused the ditches to be made much wider than they were before, and had a hill levelled, which, being near the fortress, appeared to command it. But, besides the many other works that he did there with great consideration, what gave most satisfaction was that in one corner of the fortress he made a place of great size and strength, in which in time of siege the people of that island can stay in safety without any danger of being captured by the enemy.