Origin of two paintings?

[M. Demetrius]

so could this be a kind of condensed St Peter & Paul thing

Could be, but a quick read of Acts 9:3-19 makes the panels pretty parallel to the account. Peter probably didn't know Paul (Saul) at the time of his trip to Damascus, as Saul would have had him arrested and tried if he had found Peter in Jerusalem, as evidenced by the treatement of Stephen, a couple of pages earlier.

Just my view, though. I'm not arguing about it. If the Latin inscription were easier to read, it would probably clear the waters. And yes, Tarbicus, I think you're quite right about the part we can read. That phrase, then, would pertain to Paul. What the rest says, my old eyes can't tell.