The Prince and Princess of Wales were the picture of royal duty at King Charles III’s coronation on Saturday. Clad in formal uniform, at the request of the monarch, William and Kate arrived at Westminster Abbey alongside their three children, Prince George, Princess Charlotte, and Prince Louis. After much speculation about whether Kate would wear a tiara to her father-in-law’s historic crowning, she instead opted for a Jess Collett x Alexander McQueen headpiece with silver bullion and leaf embroidery.