Kate Middleton and Prince William have marked their 15th wedding anniversary by sharing a new family photograph featuring their three children.

The image was released on April 29 and shows the couple seated on grass alongside Prince George, Princess Charlotte and Prince Louis.

The photograph was captioned “Celebrating 15 years of marriage ❤️”, offering a brief but personal message to mark the milestone. The family appeared relaxed in summer clothing, gathered closely together in an informal outdoor setting.

The anniversary marks 15 years since the couple married at Westminster Abbey on April 29, 2011.

Their wedding was widely broadcast and followed their engagement announcement in 2010. The pair first met while studying at the University of St Andrews in Scotland, where their relationship began before developing into a long-term partnership.

The family recently marked another occasion with the eighth birthday of their youngest child, Prince Louis.

A new portrait and video were released to celebrate the milestone, continuing a tradition of sharing images for family events. The footage showed the young royal playing outdoors during a family trip to Cornwall.

The anniversary photo adds to a series of public updates from the Prince and Princess of Wales, offering insight into family life while marking key personal milestones.