One might add, of course, Lingua Latina.
Also, a question about the Henle series: isn’t it wholly appropriate to include some representative ecclesiastical texts? After all, the work of scholars like Bede, Jerome, and Boethius ranks close in cultural and historical importance (if not literary) to most of the classical writers. Bias is itself a biased word. I’m not trying to pick a fight here - nor am I indeed primed to the slightest slight against the church, not being much of a Christian myself - but I did find your qualification curious.
avec sincerité
David