In the thirty-fourth canto of Dante’s Inferno, our intrepid tourists Dante and Virgil find themselves at the very bottom of Hell’s ninth circle, known as Judecca, a name derived from Judas Iscariot.  With his enthusiasm for classification and categories, Dante has given us names for the different parts of the ninth circle, in which are housed particular types of traitors:  Caina (for traitors to family), Antenora (for traitors to country), Ptolomaea (for betrayers of guests), and Judecca (for traitors to benefactors).