Princess Diana died in 1997 at the age of 36 following a car crash in Paris. William was just 15 years old at the time. Had she lived, Diana would have celebrated her 65th birthday on July 1.
The post quickly resonated with royal fans, who filled the comments with emotional responses to the rare photo.
“She was a wonderful woman,” one person wrote. Another chimed in, “She is proud of you, William.” A third shared, “This is beautiful. Thank you for sharing a piece of her with us,” while another commenter added, “Suddenly my tears drop….. thank you @princeandprincessofwales for posting this.”
Prince William wasn’t the only royal marking the holiday. The official royal family Instagram account also shared a Mother’s Day tribute honoring both King Charles and Queen Camilla’s late mothers.