The Working British Royal Family
Prince & Princess of Wales and family; Duke & Duchess of Edinburgh and family;
Princess Anne & Vice Admiral Laurence; Duke & Duchess of Gloucester; Duke of Kent; Princess Alexandra
The Extended Royal Family
Princess Beatrice, Princess Eugenie, Zara Tindall, Lady Sarah Chatto, Margarita Armstrong-Jones
members of the Gloucester and Kent families
Images from Getty as indicated
Royal Hats 
It was really something, wasn’t it? Thanks so much for your hard work and expertise, HatQueen!