Historian and author Sarah Gristwood said the Duchess of Cambridge appeared poised to “play a big role” in “reshaping” the monarchy.
She believes the palace officials who apparently laughed at “Waity Katy” are now in awe of Prince William’s wife.
Kate was given the cruel nickname, which suggested that she was patiently awaiting a proposal, despite being William’s girlfriend around 2008.
However, the couple celebrated their tenth wedding anniversary last week, with Kate refocusing on her royal duties after Megxit.
The newsletter is sent early every morning, at noon and every evening.
Never miss a moment by signing up for our newsletter here.
Ms Gristwood told Vanity Fair: “I bet those courtiers who once made fun of ‘Waity Katy’ are the ones who bow the lowest now.
“She looks like the person who is going to have to play a big part in the ongoing remodeling of the monarchy. “
Sources told the Daily Mail that the Duchess of Cambridge’s resolve and confidence has grown since Megxit last year.
She is now apparently keen to achieve “real and lasting change”, with an emphasis on continuing to help young children.
Palace aides told the Mail: ‘The Duchess is definitely doing things different and outside of her comfort zone these days, and that’s because she feels confident doing them. “
It comes after Daily Mirror royal correspondent Russell Myers said Prince William and Prince Charles would leave Prince Harry and Meghan to “sort things out for themselves”.
Speaking to talkRadio, he said the royals are united and are trying to ‘get things in hand’.