“The Vatican” is fairly nebulous. Sort of like “Chicago.”
No doubt somepeople were aware of some individual Nazis, more were aware that there were some Naxis among the Germans, and even more would have thought it likely that there were Nazis among the Germans.
On the other hand, everyone was aware that there were Jews among the Jews.zi”
“Naxi” is also a rather flexible term. The particular “Naxi in question was a member of the SS but so far there is zero evidence for him committing any war crimes.
Pope Benedict was a member of the Hitler youth because every German boy was automatically enrolled at a certain age. Yes, in some peoples’ eyes that akes him a Nzzi.