More likely, it is the abdication of her father Edward 8th that would invalidate her claim if any, plus perhaps her American citizenship if she has any.
For all that, if "pathologists"=MD's, make as much money as I think they do, she may have been better off this way after all.
But: who on earth had custody of the baby in England, and if they were going to be put it up for adoption, why do so in America rather than in England, and does this invalidate her American citizenship, if it is found that records were in error and she was not in fact born in the USA after all?
I know this seems preposterous but usual psych. methods show she actually is daughter of WWS.
I don't know about the others, but for Charles, the only one that matters, this is not true. Diana was from a noble line. (I know, she was a common tramp, but her lineage was determined to be suitable.)