Nicknames / Professions for nobles, visible in portrait view

When I have many nobles, it would be helpful to be able to assign them a piece of text to know who is who.

Players can choose how they use the feature, but I would use it for professions like "Builder" or "Crafter".

These COULD also be auto-assigned based on noble skills or job priorities.

These COULD be icons instead of text (for professions / roles). This has the benefit of taking less space and easily allowing multiple professions to be shown for one noble.

Or all three, a nickname, a profession, assignable icons...