Whee!
You know you're an incurable medievalist geek when the accidental discovery of an online database of French cartularies fills you with glee.

And check out the Ordonnances de l'hôtel du roi, which ennumerate all the staff of the French kings around 1300. Those are just such nifty records of the daily life of royalty. If my dissertation was coming along faster than it is, I would take the time to translate them for the benefit of fantasy writers trying to do some realistic worldbuilding.