Macmillan, I had also wondered about the claim the French could make on her remains. Any idea if her husband's tomb survived the French Revolution?

I was surprised to read what you wrote about how Mary considered herself to be the de jure Queen of Engand. If so, it explains to me why Elizabeth would have considered her to be such a threat. But what would this claim have been based on?

As regards Cardinal Henry Benedict, I suspect that canon law of the period might have made him ineligible for inheriting the title, due to his status as a cleric.