The Life of Cesare Borgia by Rafael Sabatini

At about the same time that Burchard was making in his Diarium those entries which reflect so grossly upon the Pope and Lucrezia, Gianluca Pozzi, the ambassador of Ferrara at the Vatican, was writing the following letter to his master, Duke Ercole, Lucrezia's father-in-law elect: "This evening, after supper, I accompanied Messer Gerardo Saraceni to visit the Most Illustrious Madonna Lucrezia in your Excellency's name and that of the Most Illustrious Don Alfonso. We entered into a long discussion touching various matters. In truth she showed herself a prudent, discreet, and good-natured lady. "(1)

1 See Gregorovius's Lucrezia Borgia.