This is another area where it would be important to distinguish the "data entry screen" -- what you get when you press "edit" -- and the "display screen" -- what you get when you first bring up the profile.
The function of the data entry screen should be to get important data into the computer in an organized fashion where the computer can find it. So that requires interaction between the programmers and representatives of the users.
By contrast, the function of the display screen is to present that data in a way that informs the reader and honors the person profiled.
It would make sense to have a data entry screen for certain titles in an organized way. Perhaps if you entered "earl" or "jarl" you would even get a pop up box where you could choose what kind of earl, so that it would all be entered in a coherent way.
On the display screen, on the other hand, it should be displayed the way it would have been seen by contemporaries. If the man was known as "John Smith, Lord Anyhow, Third Duke of Where," that was the way it should be displayed, without some of those titles in quotes as nicknames.
Already, the data entry frames and display screens look different. We should capitalize on that so that the displays do more to honor what the person was really known by.
That's the long way around saying that if title is important in the computer, we should have a way to capture the titles of all the jarls, and if Birgir Jarl is what he was known as, we need a way to display exactly that on the display screen!