The Princess of Wales has the same magic as her late mother-in-law Princess Diana meaning people will ignore the description of her by Prince Harry as being "petty and difficult", according to a royal expert.
Today, the senior royals were out in force on engagements across the UK for the first time since the release of Harry's controversial memoir Spare.
Prince William and Kate, who feature heavily in the book, travelled to Merseyside to meet healthcare workers while a kilt-clad King Charles visited Aberdeenshire.
Harry's book includes claims William physically attacked him and confirms Kate and Meghan Markle had a fractious friendship.
It reveals the two women had a row over bridesmaids' dresses with Kate left upset by a comment by Meghan about "baby brain".
And the fact that the King and the Prince and Princess of Wales are all out today gives them "the ideal opportunity to present a united front", says Ingrid Seward, the editor-in-chief of Majesty magazine.
The royal biographer told the Mirror: "Diana once explained to me that she used to feel nervous about engagements if negative stories had been written in the press that day.
"She imagined people would judge her by what they had read rather than how she presented herself in real life. She need not have worried as she charmed everyone anyway regardless of what had been said about her.
"The current Princess of Wales is the same. Whatever Prince Harry wrote that made her sound petty and difficult, will be ignored the moment people see her in the flesh. She has the same magic as her late mother-in-law. The flashing smile, the ability to chat to anyone and her empathy with children.
"The King has also adopted a very warm and friendly demeanour since the Queen died. He shakes hands, chats smiles and always has a little joke to share.
"His son William has always been the same. He has an uncanny ability to relate to people of all types and ages and I feel certain that today everyone will be willing them all to do their bit and give them vocal encouragement."
Meanwhile, Ingrid added it was an ideal coincidence today that allowed the royals to present their united front.
She added: "The royal family plan their engagements months in advance. Their diaries are so full there is little room for spontaneity. They understand how long the planning can take and in this age of terrorism, nothing can be left to chance.
"Before the internet, a list of engagements from the various royal palaces was made available.
"When I was first introduced to the Queen at a reception on a royal tour, I couldn’t believe it when she said she used Majesty magazine as a diary to see what her family were doing.
"Times have changed enormously but the essence of a united front in times of trouble has not."
Ingrid Seward is editor-in-chief of Majesty magazine and a royal biographer.
