A royal expert has shared a conversation she previously had with Princess Diana about Camilla, who will be crowned Queen tomorrow.
Diana married King Charles at St Paul's Cathedral on July 29, 1981, but they separated in 1992 and eventually divorced in 1996, after fifteen years of marriage.
They had two sons, Prince William and Prince Harry, but it was later revealed that Charles had been unfaithful to his wife with the then Camilla Parker Bowles - a former girlfriend who he had dated in the 1970s.
The discovery led to Diana famously saying in a controversial Panorama interview: "Well, there were three of us in this marriage, so it was a bit crowded."
But commentator Jennie Bond, who has covered the Royal Family for decades, said the late Diana believed Camilla had been "loyal" and "deserved some form of recognition".
She told Sky News: "I will just say about Camilla that I sat with Diana in her drawing room and talked about Camilla.
"And Camilla, in Diana's view, had been loyal, discreet, and deserved some form of recognition.
"Well, she is going to get it on Saturday."
The King and Queen Consort have this week been attending rehearsals at Westminster Abbey to be ready for Saturday.
Behavioural expert Judi James said Camilla displayed newfound confidence after a rehearsal on Wednesday.
She was pictured waving her hand from a car, which according to the expert, shows that she has overcome feelings of tension.
Ms James told the Mirror: "Camilla is normally the royal exhibiting the most obvious signals of anxiety and nerves.
"But her relaxed smile and her royal wave from the car suggests she has risen above those previous feelings of tension and is prepping to enjoy the day.
"The secret to her newly-found confidence might be the young boys in the car with her.
"This will be a first royal outing for some of her grandsons and their excited facial expressions suggest they are seeing it as fun rather than fearful."
It comes after we reported that Prince William will pay tribute to both the King and Camilla after a glittering Coronation concert at Windsor Castle.
A royal source said of the heir's address next Sunday: "His speech will be heartfelt and loving."
His praise will be in stark contrast to brother Prince Harry, who in his book Spare said he feared the Queen Consort would become their "wicked step-mother" and accused her of leaking stories to boost her image.
It comes as new pictures show the huge red, white and blue concert stage where rock royalty will perform to mark the occasion in a week's time.
A royal source said: "William feels entirely differently to his brother on these matters. His speech will be heartfelt and loving, paying tribute to his father as a man of principle who has also devoted himself to duty and to the causes he believes in.
"The Prince also feels it is important to pay tribute to how Camilla has dedicated herself to causes and has made a real difference to many in her royal role and also contributing to his father's happiness."
Prince Harry will travel to the UK for his father's Coronation but is only expected to remain for a short time before returning home to California to celebrate his son Archie's fourth birthday.
An insider claimed Harry will be "in and out of the UK in 24 hours" and that he will leave after the Coronation service at Westminster Abbey.
The ceremony is expected to end at 1pm so it is believed that the Duke could head to the airport straight after, possibly leaving the country at around 2pm or 3pm.