I am writing a novel with a character named Marcus Valerius Corvus, born in the times of the Roman Republic, .
For our purposes, he is practically immortal. So, for a century or two, he goes by his praenomen or its local derivatives (Marcus, then Marc, Mark, Markian, etc), then for a century or two by his cognomen (Corvus, then Korv, Korvin, etc), then by nomen (Valerius, then Valeri, Val, etc), then he cycles back through again.
At this point in time of the novel, he has moved on to going by Valerius.
So, my question is, is this completely unacceptable that he would have people address him by his nomen, which usually would not have been used this way in the Roman times? The address I am considering here is Master Valerius.
Or should I be making some changes to the naming of that character?
For our purposes, he is practically immortal. So, for a century or two, he goes by his praenomen or its local derivatives (Marcus, then Marc, Mark, Markian, etc), then for a century or two by his cognomen (Corvus, then Korv, Korvin, etc), then by nomen (Valerius, then Valeri, Val, etc), then he cycles back through again.
At this point in time of the novel, he has moved on to going by Valerius.
So, my question is, is this completely unacceptable that he would have people address him by his nomen, which usually would not have been used this way in the Roman times? The address I am considering here is Master Valerius.
Or should I be making some changes to the naming of that character?