Now Simon Charles Dorante-Day – who claims he has evidence to back up his allegations – is preparing to take his fight for the truth to the next level, determined for the world to know about his royal parents.
In a move that’s set to become the biggest palace crisis in recent history, Simon intends to take Prince Charles and Camilla to court when they’re in Queensland next year for the Commonwealth Games.
‘I know that my story sounds unbelievable, but everything I say is checkable – if you don’t believe it, check it,’ he says.
‘I’m simply a man looking for my biological parents, and every road has lead me back to Camilla and Charles. I’m not in this for money or for a title – I simply want to know who my parents are.’
‘I was very close to my grandmother, who worked for the Queen, and she told me many times that I was Camilla and Charles’ child,’ Simon says.
On further research, Simon discovered Charles and Camilla had become close in 1965 – and just months later, in the lead-up to when Simon was born, Camilla mysteriously disappeared for at least nine months, while Charles was sent to Australia.
Adding to the mystery, the hospital where Simon was reportedly born didn’t deliver babies at the time and the names his parents listed on his birth certificate were fictitious, made-up names.
‘One of the lawyers I’ve spoken to has identified that there’s one particular act that I can use to do it,’ Simon reveals to New Idea.
‘That’s what I’m looking to do at this stage. They will be forced to go to court and do paternity testing.'
His letter to the Duchess of Cornwall reads: 'As you are no doubt aware, I have been trying for some time to find my natural birth parents and, as you are no doubt also aware, I believe you are my mother.
'I can remember several instances, when I was very young, where I was taken to meet a woman who looks exactly as you did around that time. If I was to describe her to you it would fit your description to a tee.
'As a mother and grandmother yourself, I am sure you can relate to my frustration, sadness and torment at not being able to resolve this personal issue.'
To see the rest of the story, and Simon's full letter, read this week's copy of New Idea, on sale now.