Immaculata the nun recalled this nameless Pompeii Spawn in #6 (Spawn the Dark Ages). He is her last kill as a Seraphic Huntress, one that brought regrets as she unwittingly levelled the city of Pompeii in AD79. I am speculating of course, Brian Holguin, the writer of Dark Ages did not mention names but the background images are definitely that of a Roman city.