A man who claimed to be the secret son of King Charles III and Queen Camilla has shared some photos along with a cryptic message on his page.

The post made by the man identified as Simon Charles Dorante-Day revealed his intentions in a fresh bid to prove his heritage.

British-born Simon Charles Dorante-Day now lives in Australia and believes he is the illegitimate son of Charles and Queen Camilla.

Recall that Mr Dorante-Day claimed that his adoptive mother, who used to work for Queen Elizabeth II, told him he was Charles and Camilla’s son on her deathbed.

He was adopted when he was about eight months old in 1966 in Portsmouth – Charles would have been 17 and Camilla 18 at the time.

Mr Dorante-Day has made repeated requests for DNA tests to prove his claims but the royal family has remained silent over the years. On Wednesday, May 1, Mr Dorante-Day took to Facebook to share some snaps of his face next to Charles and Camilla’s.

He wrote: “One good thing about them becoming King and Queen is that we get a lot more images to compare with, from many different angles.

“The more I see, the more they look like thee. It’s been a while since we’ve done one, even though I’ve received many!

“So, many features I can trace, not just to me but to our children, and with many members of both families! The more weight Charles loses from his face the more he looks like me!”