If my memory serves, they would often introduce themselves as ___ son of ___. It could go past that in certain situations, I'm not completely sure. Anyway if that were the case a they would have no...
A Roman last name was his/her cognomen. The Romans usually had three names, the praenomen, nomen and cognomen. Praenomen was their given name, such as Gaius or Marcus; the nomen was their gens or...