When it comes to which one would use when speaking about someone with the title in the third person in a conversation with someone else. A and B are speaking about C; C is a lord. Is it a matter of personal preference? Is there a class distinction? Does using one over the other say something about the speaker? Does it flow back and forth simply to avoid over-repetition of either? I come from a land where we have no such; thus, I have no innately enculturated sense of it. Helps? P.S. I have a follow-up question over here: Lords and Ladies but now royals or other such titles?