Simon Charles Dorante-Day, a 56-year-old engineer from Queensland, who describes himself as the secret son of King Charles III and his wife Camilla, has said he will take legal action to prove his lineage despite the death of Elizabeth II.

The British native paid tribute to Queen Elizabeth II on Facebook after she passed away at Balmoral Castle.

Simon said that after the death of the Queen, he receives a large number of messages of sympathy and is grateful to each of them:

“My family and I feel sorrow not only for the loss of Her Majesty, but also for the loss of another opportunity to resolve the matter in a gentle, correct way.”

The man claims he was adopted at the age of eight months, and his adoptive grandmother confessed before her death that Simon is the “secret son” of Charles and Camilla. The Daily Star adds that Simon himself has nine children and, during the life of Elizabeth II, he wrote to her to influence Charles in his unwillingness to undergo a DNA test. He did not get results.

Dorante-Day was born in Portsmouth (UK) on April 5, 1966 and was adopted at the age of eight months, after which his family moved to Australia. Both of Mr Dorante-Day’s adoptive grandparents worked for the Queen and Prince Philip in one of their royal houses, and he claims his foster grandmother told him he was Charles and Camilla’s son.