The Princess of Wales and the Duchess of Edinburgh's friendship took center stage as the royals celebrated Garter Day at Windsor Castle on Monday.

Prince William, Catherine, Princess of Wales, Prince George, Princess Charlotte and Prince Louis attend the "Together At Christmas" carol service, at Westminster Abbey in London, on Dec. 8, 2023 ...

Kate Middleton and Princess Charlotte often wear coordinating outfits at public events, from Prince Harry and Meghan Markle's ...

Prince Louis didn't Kate Middleton, Prince William, Prince George and Princess Charlotte at Wimbledon on July 13 — inside why ...

In May, former Tatler cover star Lady Helen Taylor joined her father, 89, for a performance of the London Philharmonic ...