Duchess of Cambridge
"The last nine months have been incredibly tough for us," the Princess of Wales said.
Prince William and Kate Middleton released the black-and-white photo on the prince's 11th birthday on Monday.
The new photo comes just one day after the Princess of Wales made her first public appearance in six months.
The young royal couldn't help but get funky as he listened to bagpipe music at Trooping the Colour in London.
The Princess of Wales attended Trooping the Colour on Saturday, and made a very special appearance alongside her three children.
The Princess of Wales has not attended a public engagement since December 2023.
It’s the first time the Princess of Wales has publicly provided a health update since announcing her diagnosis in March.
The Princess of Wales revealed on March 22 that she had been diagnosed with an unspecified kind of cancer.
The Prince and Princess of Wales celebrated their daughter's birthday by sharing an adorable new photo.
The Princess of Wales said in March that she'd been diagnosed with cancer following abdominal surgery.
About Duchess of Cambridge
Born on January 9 1982, the Duchess of Cambridge is five months older than Prince William. The pair married on 29 April 2011, having met at Scotland's University of St Andrews in 2001. The couple split briefly in 2007, but later reunited and became engaged during a holiday in Kenya to celebrate the Prince passing his RAF helicopter search and rescue course. On 14 January 2013, St James's Palace announced that the Duchess was expecting her first child in July 2013.