Giorgio Vasari

“ And this he could do very conveniently, being a man of fair possessions as well as of remarkable ability, wherefore he did not work for the sake of gain, but for his own pleasure, and when he felt inclined, to the end that he might leave honourable memorials of his existence behind him. Francesco di Giorgio also gave his attention to painting, and produced some pictures, [2] but they do not equal his sculptures: in architecture, on the contrary, he possessed great judgment, and proved himself to be well versed in that branch of art. ”

“ The halls are large and magnificent; the arrangement of the rooms is singularly judicious; they are richly decorated, and the whole palace is in short as handsome and well-constructed as any one that has ever been erected down to our own day. Francesco di Giorgio was a distinguished engineer,nota more particularly in the construction of military engines. Of his ability in this respect, he has given evidence in a frieze paintednota by his hand in the above-named palace of Urbino, and which consists wholly of instruments required for the purposes of war. ”

“ Jacopo della Fonte had likewise executed two stories in bronze for the same work, and the manner of these was imitated by Lorenzo as closely as was possible. It was from his hand that the baptismal font received its ultimate completion, by the addition to it of certain figures in bronze, formerly cast by Donato, but entirely finished by Lorenzo, and which are considered extremely beautiful. [14]
For the Loggia used by the officials of the bank, Lorenzo executed figures of St. Peter and St. Paul, in marble; they are of the size of life, have much grace, and are finished with great ability. ”