Who are Anastasius and Photius in "Dante's Interno"?**I think they're characters of that masterpiece but, I don't know. Anyway, thanks for your...

Anastasius II was pope from during the middle ages (496-498). He was widely believed to have been a heretic. Deacon Photinus, a member of the Church of Constantinople, taught him to believe that Christ was conceived in the usual human manner rather than by divine visitation. Also, the Deacon lured the Pope into giving him communion, even though he was not a Roman Catholic. Both of these men are in a vault in Dante's Seventh Circle of Hell (Canto XI).