Simon Dorante-Day has spent the better part of the past 40 years searching for the truth about his "real" family.
The 55-year-old grandfather from Queensland, Australia, is so convinced he’s the secret love child of Prince Charles and his wife Camilla, Duchess of Cornwall, he refuses to let it go. In fact, Simon has made it his life’s work to prove the future king and his consort are his biological mom and dad.
Simon has done several interviews over the years to discuss the ties he believes he has to the royal family and also shares regular posts on his Facebook, where he goes by @PrinceSimonCharles.
The page is dedicated to his investigation, claims and photographic "evidence" of what he calls his "resemblance" to the royal couple.
One of his latest posts is an image of his son, Liam, alongside a photo of the queen in her 20s. In this case, Simon says, it’s a comparison one his 100 000 followers made and sent onto him – proof, in his books, that blue blood runs deep in his Down Under veins.
"We were blown away when we first saw the picture," he told Australian news outlets. "Elvie [his wife, Dr Elvianna Dorante-Day] and I feel like we see many members of the royal family in our children, but this one was an eye opener."