Commentary on the Pazzi Conspiracy

...and the family of Count Girolamo, Antonio Volaterranus, whom either the hereditary hatred, or a certain easy and frivolous nature of the man, solicited into the crime. Furthermore, there was Stephanus, a priest and scribe of Jacopo Pazzi, a man who was shameless and of ill repute for every crime, who was also reported to behave in the house of Jacopo in a manner that was far from honorable. For he was teaching letters to his only daughter, who was conceived in adultery. It is established that both Renato and Guglielmo Pazzi were not ignorant of this conspiracy. Guglielmo himself had taken in marriage Blancia, the sister of Lorenzo de' Medici, and had already received ample offspring from her. Wherefore he was thought to be sitting, as the saying goes, on two stools. This man was the elder brother of the aforementioned Francesco. Renato, however, born from Piero, a man of knightly rank and the brother of Jacopo and Antonio, was the cousin of Guglielmo and Francesco. This man was not unskilled, and was a great dissimulator of hatred and injury. He was indeed a man of great spirit, yet not bold; but he was one who would pursue with dispatch any matter he had matured in his mind. He was also tenacious and greedy for money, and for that reason, not at all dear to the multitude. Furthermore, the client of Guglielmo, Napoleo Eracesius, had taken up not the least part in that business. There took part in that crime several more obscure individuals, some from the Pazzi family. Among these were a certain Brigliainus, a man of the lowest condition, and Nanes, a Pisan notary, a wicked and factious man. But the one who had taken the leading part among the foreigners was the aforementioned Johannes Baptista, a familiar of Girolamo. He had been agitating this whole matter for two years already, until the fifth day before the Kalends of May in the year of Christian salvation, 1478.