Question: What epistles include references to key episodes of the life of the person who is the focus of Cento vergilianus de laudibus Christi? 
Sentence (from "Cento vergilianus de laudibus Christi"): Cento vergilianus de laudibus Christi (] ; A Virgilian Cento Concerning the Glory of Christ), also known as De laudibus Christi and Cento Probae, is the title of a fourth-century AD Latin poem, which was arranged by Faltonia Betitia Proba AD 350–360, after the author's conversion to Christianity.
Relevant evidence: No