King Charles and Queen Camilla were joined by members of the royal family as they donned their traditional Garter robes and Tudor-style hats for the Order of the Garter ceremony at St George’s Chapel, Windsor Castle, where the Duchess of Gloucester was invested as a Royal Lady King Charles and Queen Camilla were joined by members of the royal family as they donned their traditional Garter robes and Tudor-style hats for the Order of the Garter ceremony at St George’s Chapel, Windsor Castle, where the Duchess of Gloucester was invested as a Royal Lady