Aussie who claims to be King Charles’ ‘secret son’ demands a paternity test ahead of the monarch’s arrival Down Under

An Australian man who believes he is King Charles’ ‘secret son’ has made a wild claim that a quadruple paternity test should be carried out in a bid to prove his claims.

British-born Simon Charles Dorante-Day has made headlines around the world over unproven claims that he is the illegitimate love child of King Charles III and Queen Camilla.

He was born on April 5, 1966 in Portsmouth, Great Britain, and was adopted at eight months old.

The 58-year-old claims his adoptive grandmother – who worked for the late Queen Elizabeth II – told him on her deathbed as a child that he was Charles and Camilla’s son.

The father-of-nine also claims Charles was sent to Australia to study in the months leading up to his birth, and Camilla disappeared from the public eye for around nine months.

As the king and queen were due to land in Australia on Friday, Mr Dorante-Day shared a post on Facebook last month claiming there were “inconsistencies” between the facial features of Charles and his sons William and Harry.

“This comparison of William, myself, Charles and Harry shows something very clearly: there is no consistency,” he said, along with a photo of their faces side by side.

‘The fact that the left side of my face matches Charles’s identically, while neither William’s nor Harry’s does, begs the obvious question: who are Charles’ real sons?

British-born Simon Charles Dorante-Day (pictured with his wife Elvie) has made headlines around the world over claims he is the illegitimate love child of King Charles III and Queen Camilla

British-born Simon Charles Dorante-Day (pictured with his wife Elvie) has made headlines around the world over claims he is the illegitimate love child of King Charles III and Queen Camilla

He claims he is the king's illegitimate son and says they have similar physical characteristics

He claims he is the king’s illegitimate son and says they have similar physical characteristics

‘This is why my wife, Doctor Elvianna, and I believe that a quadruple paternity test is the only way to solve this problem once and for all.

“The truth of the game that the monarchy, the government and the establishment have been playing for 58 years must be exposed.”

Daily Mail Australia does not suggest there is any truth behind his claims.

Mr Dorante-Day also took the opportunity to repeat a lengthy interview with Seven News about his plight to prove he is the King’s son.

Part of his claims are that there are varying reports about Charles and Camilla’s ages when they met – with Mr Dorante-Day claiming they met as teenagers, and not in their early twenties.

“I’m right, why hide the real date they first met? Unless there’s a reason!’ he said.

Mr Dorante-Day, who lives in Queensland with his wife Elvie, has done several media interviews in which he explains why he believes he is related to the King and Queen, including comparing physical attributes.

He also claims that his children have the same characteristics as Prince William and Kate’s children.

He had previously said he was prepared to take legal action in an attempt to force the king to take a paternity test.

Mr Dorante-Day (centre) regularly posts images comparing photos of himself with members of the British Royal Family - in this case the King (left) and Camilla (right)

Mr Dorante-Day (centre) has gone viral by regularly posting images comparing photos of himself and his children to members of the British Royal Family – in this case the King himself (left)

Mr Dorante-Day’s case claims that King Charles and Queen Camilla began their close relationship in 1965, a year before his birth certificate says he was born.

However, it is widely reported that Charles and Camilla met in 1970 at a polo match in Windsor Great Park.

Mr Dorante-Day insists that Camilla kept him until he was eight months old and hid him from the world with the help of the royal family and protection officials, and claims to have been told it was a condition of the adoption that his names Simon and Charles were not changed.

The father of nine children also called Queen Elizabeth II his ‘grandmother’ upon her death.