Yes, but they were in the centre of hell werren't they? Circle ix had 4 rounds- one containing Judas, yes, and Cain plus two others, Antenor and something like Ptolemus
I have to admit my first thoughts were Brutus Judas Cassius but the rounds were not named after these three. However, the number of letters required by your answer do not equate to three of the named rounds.......and I therefore go back to my original thoughts