I have had some inquiries about Flavia Sophe. So I thought I would point you to an absolutely outstanding article that was just published by Greg Synder on this tombstone. "The Discovery and Interpretation of the Flavia Sophe Inscription: New Results" in the journal Vigiliae Christianae 68 (2014) 1-59. If this tombstone interests you, you will want to read this piece. It should be available at any university library. He discusses in detail the discovery in Via Latina and its probable second century date, as well as a thorough Valentinian interpretation of the poem.