Carole and Michael Middleton, as well as Kate's siblings Pippa and James, were also "so pivotal and important," as she battled cancer, Vanity Fair royal expert Katie Nicholl revealed in an interview with The Sun 's "Royal Exclusive."

Kate Middleton is in remission from cancer, she said on social media on Tues., Jan. 14. The Princess of Wales first revealed her diagnosis last year.

Kate, the Princess of Wales, announced Tuesday that her cancer is in remission, less than one year after announcing her diagnosis. The 43-year-old princess shared the update in a statement on X, writing, "It is a relief to now be in remission and I remain focused on recovery."

Catherine, Princess of Wales, announced her cancer is now in remission on Jan. 14. "It is a relief to now be in remission and I remain focused on recovery. As anyone who has experienced a cancer diagnosis will know, it takes time to adjust to a new normal," the former Kate Middleton said in a statement posted on Instagram.

Through what's been a challenging year for the royal family, Prince William and Princess Kate's relationship has taken center stage, and according to royal sources, they've only come out of 2024 stronger.

Princess Kate and Prince William have shown unprecedented openness about their relationship following Catherine's cancer journey, according to sources close to the royal household. A source told People magazine that the Prince and Princess of Wales are "more open" now and "talk about their relationship together.

A source close to the royal family commented on the pair's marriage following Middleton's latest health update.