The Duchess of Cambridge married the second heir to the throne Prince William on April 29, 2011 at Westminster Abbey. Since joining the Firm, royal observers and insiders have praised Kate on her ability to adapt to life under the spotlight.
A source told Tatler magazine last year: “In the palace, you hear numerous stories of the staff saying so-and-so is a nightmare and behaves badly but you never hear that about Kate.
“It’s why she is so well suited. She keeps her head down because the prize of being Queen is so great.
“She models herself on the Queen and now speaks like the Queen.”
Last month, the Cambridges celebrated their tenth wedding anniversary.
READ MORE: Kate Middleton fans praise future Queen for surprise book hunt
At the time, royal expert Penny Junor hailed the Duchess for always being “measured”.
Ms Junor told the Times: “She has got such poise and elegance and she’s not in competition with William.
“She doesn’t seem to be seeking fame. Everything about her is measured.
“She’s a grown-up. She seems to care a lot about everything she’s put her name to.”
Kate and William met while studying at St. Andrew’s University in Scotland between 2001 and 2005.
Royal Family LIVE: Prince Harry 'wanted to rock boat' with Oprah chat [LIVE]
Kate Middleton masterminds the Cambridges' 'brilliant' media strategy [UPDATE]
Zara Tindall's move to stop baby Lucas upstaging Princess Charlotte [INSIGHT]
In 2007, the couple took a break from each other for a few months.
Later in 2010, when the couple announced their engagement in an interview, William said: “We were both very young, it was at university.
“We were both finding ourselves as such and being different characters and stuff.
“It was very much trying to find our own way and we were growing up, it was a bit of space and a bit of things like that and it worked out for the better.”
Since their royal wedding, the Cambridges had three children together - Prince George, seven, Princess Charlotte, six, and Prince Louis, three.