According to 7news.com.au, Simon Dorante-Day, 56, has garnered global headlines after suggesting his claims are the result of decades worth of research.
Speaking exclusively to the outlet, he said he is ‘more committed than ever’ to take Charles to court for DNA testing.
Watch as King Charles III proclaimed King of England…
He also says he has discussed with senior lawyers how bringing action against the king could be brought about.
He said: “There has been a discussion in there between a judge and myself and his barrister about the legal standing of Charles, and whether the monarch is protected by the law or is above the law.
“And the answer to that was no – they told me that we don’t see any reason why he is.
“And secondly, Camilla and her family are certainly not above the law. So that argument’s already been had and settled.
Related Article: King Charles III Breaks Silence On Queen’s Death With Statement
“A lot of people were concerned that when Charles rose to be monarch that it would damage my case.
“But it’s not going to make any difference legally, it’s still pressing ahead the same way.
“I’ll be back to the Family Court. In his final ruling last time I was before the courts, the judge told me that if I come back with the evidence all nice and neatly stamped, then there’s no reason to deny an application for a DNA test, and Charles and Camilla will have to answer that.
“It makes no difference to me whether that mountain in front of me is male or female. It makes no difference to me how high that mountain is.
“I’ve still got to climb it to prove what I know to be true. So from that regard, nothing has changed.”
Dorante-Day says he has been experiencing a range of mixed emotions since the Queen’s death last Thursday.
He also revealed that he has previously penned a private letter to the Queen, hoping that it would lead to her encouraging Charles to take a DNA test.
He noted his disappointment that the Queen had died before having ever responded.
He continued: “First thought: Just sad. No response to the letter I wrote to her, and that window of opportunity has closed.
“But also, her death brought up some different emotions, some anger. Because she’s been across all this and she’s been aware of all this, knows that it’s been going on. And she let that happen.
“However by that same token, now I’m looking to the future and I’m thinking – ‘Well I’m not dealing with her anymore, I’m dealing with him.’ So there’s that element of it too.”
Dorante-Day’s wife, Elvianna, said: “I don’t think the Queen knew what to say to him, knowing what they did. Simon is still going after his father.”
Watch our Video of the Day below…