There is a school of thought that JP I was murdered (remember that he was only Pope for 33 days before he had a heart attack). He allegedly had no prior heart problems, yet there was no autopsy and no investigation....
There is another theory about Paul VI that he had been doubled by an actor--there are websites that show before and after pictures and there are some physical characteristics that look different (i.e., the length of the nose in relation to the ears, shape of the ears, shape of the nose).
Don't know whether there is anything to them or not, just idle speculation.
I'd heard the first yarn about JPI. I doubt we'll ever be able to prove anything either way. The one about Paul, I hadn't heard.
However, I have heard rumours about Diana's death, the faking of the moon landing, and thousands about JFK!
Lots of comments on here about the Russians, the Bulgarians, the Turks, and Mafia, but has anyone ever seen the actual report put forth by the Italian Commission which made the claim? What evidence did it have for its conclusions?
The information I read is that he had a heart condition and had forgotten his medication in the excitment of his election as Pope.