Robert Brown, an accountant born in Kenya in 1955, claims to be the illegitimate son of Princess Margaret, and 12th in line to the British throne.
At the heart of his claim is a meeting he had with a woman he believes to have been Princess Margaret when he was a young boy in Nairobi.
"I don't recall ever seeing her before but I know this woman spent some time with me. I remember we were playing games and during the day she told me that I must be on my very best behaviour because one day I might be king of England. That meeting has stayed with me and kept me going. Although I don't think I ever saw her again."
A key part of his case is that at the time of his birth, the Princess is described in at least one report of the day as [having] been confined to bed with a "hacking cough". [Link]"Hacking cough" is, of course, an English euphemism for the expulsion of a child from one's uterus.