Petrarca postillatore di Agostino. Il codice Vaticano latino 458

The Vat. lat. 458 is an Augustinian compilation widely annotated by Petrarch. This article offers an edition of Petrarch's marginalia, largely unknown until now. It fur­thers our understanding of his relationship with the works of Augustine and more generally the Fathers, like Athanasius, a matter that has become the focus of recent research and yet requires additional investigation. This paper also provides a new, updated description of the manuscript and so presents a more nuanced picture of what Petrarch read and understood as truly Augustinian. For example, while he emended some Pseudo-Augustinian passages with Cassiodorus’ De anima, he did not detect interpolated excerpts of Augustine’s De Genesi nor of Alcuin’s Interrogationes et responsiones in Genesim. Together, these data allude to the complex background of Pet­rarch’s reading and annotating of Augustine’s works, most notably those on the na­ture of the soul, of knowledge, and sin.