He’s known to be a royal pain.
Kate Middleton may be hailed as a super mom while juggling three kids and being a member of the royal family.
However, the 41-year-old Princess of Wales has another child on her hands if you count her husband, Prince William.
According to royal expert Tom Quinn, Middleton treats William, 40, “like a fourth child” because of his inclination to throw hissy fits.
The “Gilded Youth” author told Express.co.uk recently that the Duke of Cambridge is “prone to tantrums,” so says a Kensington Palace source close to Quinn.
He added that the royal family’s golden couple often have “rows” and their marriage is “not perfect.”
During these wild fights, William and Kate are known to “throw cushions at each other,” but their arguments are otherwise “always kept under control.”
William and his wife’s relationship appears perfectly content from the public’s perspective, and the pair’s marital bliss can be boiled down to the late Queen Elizabeth‘s “never complain, never explain” motto, Quinn said.
“Because William adopts the manners and ways of behaving of his grandmother and Kate is very good at not complaining, both of them have stuck to the thing that made Queen Elizabeth II such a remarkable monarch,” he said.
The expert continued, “They very rarely complain and when they do it’s always in measured terms.”
The Post has reached out to Kensington Palace for comment.
Last month, William was caught gushing over Middleton in a sweet moment during a visit to Birmingham, England.
While couple met with onlookers at the Rectory restaurant, where the Duke of Cambridge raved about his longtime lady. As he shook hands and greeted fans, one person told him, “What an amazing outfit Kate has got on! It’s beautiful!”

To which William warmly replied, “Oh, she always looks stunning!”
In a recently resurfaced podcast interview, the father of three confessed that he gave Middleton a horrible gift when they first started dating in the early 2000s.
“I did get my wife a pair of binoculars once – she’s never let me forget that,” he jokingly admitted during a 2020 appearance on Peter Crouch’s podcast on BBC Radio Five Live.
“That was early on in the courtship that was — I think that sealed the deal,” he went on.
The couple wedded in April 2011 after almost a decade of dating. They share a daughter Princess Charlotte, as well as sons Prince Louis and Prince George.