Kate Middleton’s brother sends touching message to princess after cancer diagnosis: ‘We have climbed many mountains together’

Kate Middleton’s younger brother, James Middleton, honored the Princess of Wales with a sweet message on social media after she revealed her secret cancer battle.

“Over the years, we have climbed many mountains together. As a family, we will climb this one with you too ⛰️❤️,” the British entrepreneur, 36, captioned via Instagram a photo of him and Kate, 42, when they were kids taken in front of a scenic landscape.

Fans sent their well-wishes for the princess underneath the touching tribute.

Kate Middleton’s younger brother, James Middleton, penned a touching note after her cancer diagnosis was revealed. UK Press via Getty Images James pointed out in his message that Kate has the support of her family. Instagram/@jmidy He posted the kind words alongside an old pic of them as kids. Instagram/@jmidy

“She’s going to recover! I pray that it happens soon, we love the princess!” one person wrote.

Another chimed in, “Catherine is very lucky to have such a wonderful supportive family. All of us in the royal watcher community are praying for your sister and the whole family.”

Aside from James, Kate also has a younger sister, Pippa Middleton, but it does not appear that the British socialite, 40, has publicly commented on her older sister’s cancer diagnosis yet.

Aside from James, Kate also has a younger sister, Pippa Middleton. AFP via Getty Images Kate revealed her cancer diagnosis in a video Friday. BBC Studios

Another relative of Kate’s who has spoken out about her health struggles is King Charles III.

The monarch — who is in the midst of his own cancer battle — said via a Buckingham Palace spokesperson Friday that he is “so proud of Catherine for her courage in speaking as she did.”

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The rep also shared that Kate and Charles have “remained in the closest contact … throughout the past weeks” as they both spent some time together at the hospital.

The spokesperson concluded that His Majesty and his wife, Queen Camila, “will continue to offer their love and support to the whole family through this difficult time.”

King Charles III revealed his own cancer diagnosis in February. Royal Household/WPA Pool/Shutterstock The king has “remained in the closest contact” with Kate amid their health struggles. AP

Following weeks of speculation and conspiracy theories, Kate announced in an emotional video message that she had been diagnosed with cancer shortly after having abdominal surgery in January.

“My medical team therefore advised that I should undergo a course of preventative chemotherapy and I am now in the early stages of that treatment,” the princess said in the clip.

Kate explained she and Prince William had not shared the news with the public earlier because they wanted to take their time explaining the ordeal to their three kids: Prince George, 10, Princess Charlotte, 8, and Prince Louis, 5.

Kate said she hid her diagnosis from the public for the sake of her children. Bav Media/Shutterstock She and William share three kids. DANIEL LEAL/WPA Pool/Shutterstock

“As I have said to them, I am well and getting stronger every day by focusing on the things that will help me heal, in my mind, body and spirits,” she continued.

Kate said that while her focus remains on her recovery, she looks “forward to being back” to her duties when she is “able.” It was then revealed shortly after that the princess will not attend the royals’ Easter service.

The type of cancer Kate is battling and the stage in which she is in has not yet been revealed.