Prince Harry made an "unwise" decision at his father's Coronation and is seen as a "loose cannon" by the Royal Family, an expert has said.
Royal expert Richard Kay claimed that the Duke of Sussex appeared "petulant" after leaving the Coronation early.
Harry attended the huge royal occasion alone, leaving his wife Meghan Markle at home with their children Archie and Lilibet.
Over the past year, the couple - who are now based in Montecito, California - have launched a series of attacks on the Royal Family.
Harry attended the huge royal occasion alone, leaving his wife Meghan Markle at home with their children Archie and Lilibet
The Duke spent just 28 hours in the UK for the trip before quickly leaving to head back home to see Archie on his fourth birthday.
Discussing Harry's speedy exit on Channel 5 documentary 'Harry & Meghan: Is America Turning Against Them?' Kay said: "That was unwise, it looked petulant. [It inferred] 'I'm only here because I got to be here, because I'm the King's son, but I can't wait to be away'."
Another royal expert claimed that Harry is seen as a "loose cannon" while Meghan appears "set on destroying" the Institution.
Tom Quinn said: “The Royal Family will be deeply upset by the fact they have this loose cannon, someone William was close to.
"[Harry] has married this woman who seems to be encouraging him to destroy the Royal Family."
But no matter how many interviews the Duke and Duchess give about their time in the Royal Family, Quinn says senior working royals will never respond to the allegations.
He continued: "Very sensibly, and in keeping with the tradition, the Royal Family [will never] say anything beyond things like 'recollections may vary' about these various events."
It comes after news emerged that Harry and Meghan will reportedly not make anymore fly-on-the-wall Netflix shows or tell-all books.
Prince Harry attended King Charles's Coronation service at Westminster Abbey alone, spending just 28 hours in the UK
Insiders claim the couple have "nothing left to say" after the Duke and Duchess came under fire following the release of their Netflix series and Harry's memoir Spare.
Their attack on the royals in March 2021 during an interview with Oprah Winfrey received wide-spread backlash.
“That period of their life is over — as there is nothing left to say," the source told The Sun.