Dante’s Ninth Circle of Hell

1. Treachery: The deepest circle of Hell, where Satan resides. As with the last two circles, this one is further divided, into four rounds. The first is Caina, named after the biblical Cain, who murdered his brother. This round is for traitors to family. The second, Antenora—from Antenor of Troy, who betrayed the Greeks—is reserved for political/national traitors. The third is Ptolomaea for Ptolemy, son of Abubus, who is known for inviting Simon Maccabaeus and his sons to dinner and then murdering them. This round is for hosts who betray their guests; they are punished more harshly because of the belief that having guests means entering into a voluntary relationship, and betraying a relationship willingly entered is more despicable than betraying a relationship born into. The fourth round is Judecca, after Judas Iscariot, who betrayed Christ. This round is reserved for traitors to their lords/benefactors/masters. As in the previous circle, the subdivisions each have their own demons and punishments.

The above from:

https://www.thoughtco.com/dantes-9-circles-of-hell-741539