An Australian man has alleged he's the secret son of Prince Charles and Camilla Parker Bowles, and has even released "evidence" for the claims on Facebook.
Fifty-five-year-old Simon Dorante-Day, recently posted a picture of his son, with 2 photos of the Queen placed either side. One when she was younger, and one now.
He captioned the post: "uummmm an interesting comparison." Clearly hinting at the resemblance between his son's smile and the Queen's.
One user wrote: "I see [a] mouth and nose similarity. Maybe face shape and hair color also."
Another commented that the teen was "the double of the queen in her older years."
And a third said: "For sure you would have to be blind or bloody ignorant to not believe they are related."
Last week, Dorante-Day shared multiple pictures of him and his family next to the Royals, including one snapshot of himself next to Prince William.
People shared their apparent amazement at his "similarity" to the prince...
"OMG the likeness to William is amazing, I thought it was two pics of Simon," one gushed.
"My goodness, you and William are twins," said a second.
And another agreed: "Amazing family resemblance! The evidence is becoming overwhelming."
According to his Facebook page, Dorante-Day was born in April 1966 and was adopted by a family who had connections to the Palace.
His adoptive grandparents both worked for the Queen. He also claims his grandmother told him directly that he was Charles and Camilla's son. He believes that the royal couple had him when they were seventeen and eighteen years old.
Over the past few months, he has posted articles and pictures as evidence of his claims...
Dorante-Day has even gone to the Australian High Court to urge the couple to take a DNA test.
Charles and Camilla have never responded to his claims and Dorante-Day has previously admitted that the pair ignored letters he wrote to them.
Speaking to 7News back in June, Dorante-Day said that he was blown away by the "uncanny likenesses" of the comparison photos.
"They stop me in my tracks, even to this day," he told the news site. "All the royal fans and supporters who send them to me, they're amazing."
He continued: "There are so many people invested in my story now and helping me, it's really amazing.
"But at the end of the day, it would be really nice to wake up in the morning and not have to look for evidence and keep defending it.
"Every day, I am defending myself, explaining myself, and going over the same points to people.
"It would be nice to just wake up and know who my parents are, for the world to know who my parents are."