Prince William shares new Kate Middleton photo in emotional 43rd birthday tribute

Prince William posted a touching tribute for his “incredible” wife Kate Middleton’s 43rd birthday.

“The strength you’ve shown over the last year has been remarkable,” the Prince of Wales wrote via Instagram Thursday, referencing her recent cancer battle.

“George, Charlotte, Louis and I are so proud of you,” William, 42, continued on behalf of their three children.

“Happy Birthday, Catherine,” the future king concluded. “We love you. W.”

William shared a never-before-seen photo of the “incredible wife and mother” smiling in the social media upload.

Middleton posed with both hands in the front pockets of her jeans in the black-and-white snap, taken by Matt Porteous.

She completed her look with a white top, a black blazer and a plaid scarf, keeping her brunette locks down in loose waves.

Middleton married William in April 2011.

Between 2013 and 2018, the couple welcomed George, now 11, Charlotte, now 9, and Louis, now 6.

Middleton revealed in January 2024 that she was taking a step back from royal duties to undergo abdominal surgery.

As rampant rumors — including body double conspiracy theories — swirled months later about her absence, Middleton revealed her cancer diagnosis.

“William and I have been doing everything we can to process and manage this privately for the sake of our young family,” she said in a March 2024 video.

Middleton announced in September 2024 that she was cancer free after completing chemotherapy, and the royal has since made multiple public appearances.

King Charles III, who is also battling cancer, shared a birthday message for Middleton via Instagram Stories on Thursday.

“Happy Birthday to the Princess of Wales,” he and Queen Camilla wrote in a joint statement, alongside a cake emoji.