Answer:
In Dante's "Inferno," the final circle of Hell is reserved for traitors, who are considered to be the most despicable of all sinners. The traitors are further divided into four groups: those who betrayed their country or political party, those who betrayed their family or kin, those who betrayed their guests or hosts, and those who betrayed their benefactors or masters. They are frozen in a lake of ice, each group in a separate section, with the severity of the punishment increasing for each group. The traitors are completely isolated from each other and from the world above, representing the ultimate betrayal of social and moral bonds.