Not Another Hero

Being a member of royalty gave you opportunities to learn a variety of things. Most of the lessons that passed your way involved presently useless matters of culture and pomp, but you occasionally picked up some vocations skills, admittedly of a scholarly nature.

Perhaps you could become a short-order physician?

This. Offer to see if there is a company of tumblers/traveling minstrels that needs a doctor or, erm, historian? Um... I was going to say mercenaries but there's too much potential for someone recognizing you in the midst of people who could ransom you/harm you physically.