Cato was a Roman political figure of the first century B.C.E. He fought against Julius Caesar in battle and, rather than compromise his principles by coming to an agreement with his enemies, he committed suicide. Thus, in ancient Roman culture, Cato was regarded as an exemplar of admirable Stoic principles. In Purgatorio, Dante casts Cato as the guardian of the entrance to Purgatory, suggesting that, as a non-Christian, Cato wasn’t held accountable to Christian beliefs against suicide. Cato urges loitering souls to get on with their purgatorial journey.