Royal wedding guests: styles of hats

(L to R) Edward Earl of Wessex, his wife Sophie, Countess of Wessex, Princess Anne and members of the royal family leave after the wedding ceremony of Prince William and Kate Middleton at Westminster Abbey, in central London, April 29, 2011. [Photo/Agencies]

Britain's Princess Eugenie (L) and Princess Beatrice arrive at Westminster Abbey before the wedding of Britain's Prince William and Kate Middleton, in central London April 29, 2011. [Photo/Agencies]