Kate Middleton Shares Her Children's Candid Reaction to Her Engagement Photos with Prince William

It sounds like Prince GeorgePrincess Charlotte and Prince Louis have been going through their family photo albums!

Kate Middleton and Prince William stepped out in Wales on Tuesday, marking their first visit to the nation since becoming the Prince and Princess of Wales following the death of Queen Elizabeth. While meeting well-wishers, Kate spotted one person who was holding a flag featuring the couple's engagement photo from 2010.

"Oh my goodness, is that from our engagement?" the royal said in a video shared by TikTok user mariahedges8. "We always laugh about this. Although we've been married for 11 years, we've been together for double that, so it's extraordinary."

Kate then revealed her three children's reactions to seeing the snaps: "The children look back at the photos and say, 'Mummy, you look so young!' "

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Prince William and Kate Middleton pose for photographs in the State Apartments of St James Palace on November 16, 2010 in London, England. After much speculation, Clarence House today announced the engagement of Prince William to Kate Middleton. The couple will get married in either the Spring or Summer of next year and continue to live in North Wales while Prince William works as an air sea rescue pilot for the RAF. The couple became engaged during a recent holiday in Kenya having been together for eight years.
Prince William and Kate Middleton pose for photographs in the State Apartments of St James Palace on November 16, 2010 in London, England. After much speculation, Clarence House today announced the engagement of Prince William to Kate Middleton. The couple will get married in either the Spring or Summer of next year and continue to live in North Wales while Prince William works as an air sea rescue pilot for the RAF. The couple became engaged during a recent holiday in Kenya having been together for eight years.

Chris Jackson/Getty Kate Middleton and Prince William on the day of their engagement announcement

Kate and Prince William, both 40, met as students at the University of St. Andrews in Scotland. They publicly announced their engagement in Nov. 2010, a few weeks after William popped the question (with mother Princess Diana's sapphire and diamond ring!) while they were vacationing in Kenya.

Their visit to Wales this week was particularly special, as it was a return to where they lived as newlyweds and first-time parents while Prince William worked as a helicopter pilot with the Royal Air Force's Search and Rescue Force.

"It's nice coming back to Wales because it was where we lived before we had our family and everything, so it's been a really special day," the Princess of Wales told those gathered.

Prince William, Prince of Wales and Catherine, Princess of Wales leave St Thomas Church, which has been has been redeveloped to provide support to vulnerable people, during their visit to Wales on September 27, 2022 in Swansea, Wales.
Prince William, Prince of Wales and Catherine, Princess of Wales leave St Thomas Church, which has been has been redeveloped to provide support to vulnerable people, during their visit to Wales on September 27, 2022 in Swansea, Wales.

Chris Jackson/Getty Prince William and Kate Middleton

Locals tell PEOPLE that the royal couple is immersing themselves in their new roles. Rev. Steven Bunting — who hosted them at St. Thomas's Church in Swansea, home to a food bank and baby supply hub for families in need — says William is even learning the ancient national language.

"He talked about learning Welsh and shared some Welsh phrases he's trying to do," Bunting says, revealing that the prince was practicing the phrases "paned" (a cup, such as of tea) and "bara brith" (traditional Welsh tea bread).

RELATED: Kate Middleton Accepts Flowers from an Enchanted 4-Year-Old in Wales — and Seems Just as Charmed!

Britain's Prince George of Cambridge, Britain's Catherine, Duchess of Cambridge, Britain's Prince Louis of Cambridge, Britain's Prince William, Duke of Cambridge, and Britain's Princess Charlotte of Cambridge arrive for a settling in afternoon at Lambrook School, near Ascot in Berkshire on September 7, 2022 on the eve of their first school day.
Britain's Prince George of Cambridge, Britain's Catherine, Duchess of Cambridge, Britain's Prince Louis of Cambridge, Britain's Prince William, Duke of Cambridge, and Britain's Princess Charlotte of Cambridge arrive for a settling in afternoon at Lambrook School, near Ascot in Berkshire on September 7, 2022 on the eve of their first school day.

JONATHAN BRADY/POOL/AFP via Getty Prince George, Kate Middleton, Prince Louis, Prince William and Princess Charlotte

The reverend adds it meant so much that Prince William and Princess Kate visited when they did, traveling to Wales the day after the mourning period for Queen Elizabeth ended.

"He is throwing himself into the new role," Bunting says of Prince William. "The fact that they've come straight here on day one says it all."

The Prince And Princess Of Wales Visit Wales
The Prince And Princess Of Wales Visit Wales

Matthew Horwood/Getty Images Charlotte and Kate Middleton

They were especially a hit with the Welsh children. A 4-year-old boy named Theo Crompton looked thrilled to present Kate with flowers, while 2-year-old Charlotte gave the Princess a huge hug.

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While chatting with a group of schoolchildren, Kate complimented one boy's uniform and revealed that Prince George is mastering a new skill.

Prince William, Prince of Wales and Catherine, Princess of Wales arrive at St Thomas Church, which has been has been redeveloped to provide support to vulnerable people, during their visit to Wales on September 27, 2022 in Swansea, Wales
Prince William, Prince of Wales and Catherine, Princess of Wales arrive at St Thomas Church, which has been has been redeveloped to provide support to vulnerable people, during their visit to Wales on September 27, 2022 in Swansea, Wales

Samir Hussein/WireImage Kate Middleton and Prince William

Hello! reported that Kate asked the child if he had tied his own tie and was duly impressed when he confirmed that he did.

"Well done, you. I've been teaching George because he has got to wear a tie now for school, so I'm having to teach him how to do it," she said. "But well done, you've done a good job with your tie. Nice to meet you."