Kate Middleton and King Charles Shared a Sweet, Emotional Moment at the Duchess of Kent’s Funeral

"I don’t think it is presumptuous to say that she is like the daughter he never had," royal biographer Sally Bedell Smith has said of Charles and Kate's close bond.

LONDON, ENGLAND - SEPTEMBER 16: Catherine, Princess of Wales and King Charles III at the Requiem Mass service for the Duchess of Kent at Westminster Cathedral on September 16, 2025 in London, England. Katharine, Duchess of Kent was married to Prince Edward, Duke of Kent, the first cousin of Queen Elizabeth II. She died on September 4 at the age of 92 at Kensington Palace surrounded by her family. Having converted to Catholicism in 1994, her funeral takes place at Westminster Cathedral and is the first Catholic funeral to be held for a member of the royal family in modern British history. Her Royal Highness will be laid to rest at the Royal Burial Ground at Frogmore, Windsor. (Photo by Neil Mockford/GC Images)
(Image credit: Getty Images)

On Tuesday afternoon, several members of the royal family attended the historic funeral service for Katharine, the Duchess of Kent, who died on Sept. 4. Duchess Katharine as laid to rest in the first royal Catholic funeral in recent history, at Westminster Cathedral,

After the Requiem Mass, members of the royal family gathered on the steps outside the Cathedral as the late royal's coffin was moved to a hearse to be transported to the Royal Burial Ground at Frogmore, Windsor.

Among the royals gathered after the mass were King Charles and Kate Middleton, who shared a tender moment while saying goodbye just before the King's car picked him up to leave the somber event.

King Charles III hugs the Princess of Wales as they leave after the Requiem Mass service for the Duchess of Kent, at Westminster Cathedral, central London. Picture date: Tuesday September 16, 2025. This is the first Catholic funeral service held for a member of the royal family in modern British history. Katharine, the wife of the late Queen's cousin the Duke of Kent, converted to Catholicism in 1994.

Kate Middleton and King Charles shared a sweet, emotional moment after the Duchess of Kent's funeral on Tuesday, Sept. 16.

(Image credit: Getty Images)

Cameras captured the sweet, emotional moment, when the Princess of Wales gave her father-in-law a kiss on the cheek and kept a comforting hand on his shoulder while quickly curtsying.

King Charles III hugs the Princess of Wales as they leave after the Requiem Mass service for the Duchess of Kent, at Westminster Cathedral, central London. Picture date: Tuesday September 16, 2025. This is the first Catholic funeral service held for a member of the royal family in modern British history. Katharine, the wife of the late Queen's cousin the Duke of Kent, converted to Catholicism in 1994.

The Princess of Wales gave her father-in-law a quick kiss on the cheek as he was leaving the funeral service, which was held at Westminster Cathedral in central London.

(Image credit: Getty Images)

King Charles III hugs the Princess of Wales as they leave after the Requiem Mass service for the Duchess of Kent, at Westminster Cathedral, central London. Picture date: Tuesday September 16, 2025. This is the first Catholic funeral service held for a member of the royal family in modern British history. Katharine, the wife of the late Queen's cousin the Duke of Kent, converted to Catholicism in 1994.

Kate also curtsied to the King, keeping a comforting hand on his shoulder as she did.

(Image credit: Getty Images)

King Charles has always had a warm and loving relationship with Kate, who he called his "beloved daughter-in-law" while sharing the story of her 2010 engagement to his oldest son, Prince William, during a 2023 visit to Kenya.

In 2024, royal biographer Sally Bedell Smith spoke to People about Charles and Kate's relationship, saying they're "quite close" and have "always had a very good bond," and even adding that Kate is “in some respects closer to [the King] than William.”

"I don’t think it is presumptuous to say that she is like the daughter he never had," Smith added. "He shares with William an impulse to protect her. They are in this together, Kate and the King."

Charles and Kate's bond was also strengthened last year when they both received cancer diagnoses and underwent treatment at the same time.

The experience bonded them further as "two patients going through a common health experience," a royal source told People, adding that they "are bound to have a close connection… I imagine there was some comfort [for Kate] in seeing… that it was possible to balance some private information without there being an imperative to share all."

Charles also notably broke royal protocol to honor Kate at Trooping the Colour in 2024, inviting her to stand in a place of honor next to him when the royal family stepped out for their annual balcony moment during the celebration.

“It is changing protocol to show the King and Kate united with each other and going through similar battles, so I would say this is down to the King’s preference," former royal butler Grant Harrold told OK!. “It is the balcony [line-up] is orchestrated, so I have a feeling the King said to Kate, ‘You stand next to me.’”

The King was no doubt grateful for the extra show of support from Kate at the funeral service, which his wife, Queen Camilla, had to skip as she recovered from a bout of acute sinusitis.

Contributing Editor at Marie Claire

Kayleigh Roberts is a freelance writer and editor with over 10 years of professional experience covering entertainment of all genres, from new movie and TV releases to nostalgia, and celebrity news. Her byline has appeared in Marie Claire, Cosmopolitan, ELLE, Harper’s Bazaar, The Atlantic, Allure, Entertainment Weekly, MTV, Bustle, Refinery29, Girls’ Life Magazine, Just Jared, and Tiger Beat, among other publications. She's a graduate of the Medill School of Journalism at Northwestern University.