Princess Eugenie's Most Fascinating Fascinators

Princess Eugenie of York stepped out with her sister Beatrice in perhaps their most memorable look to the Duke and Duchess of Cambridge's wedding.

A look all her own at Kate and William's wedding.

Princess Eugenie and Princess Beatrice attend the traditional Easter Sunday church service wearing traditional (for the pair) fascinators.

Princess Beatrice, Princess Eugenie stand with Queen Elizabeth over 10 years ago on the balcony of Buckingham Palace to watch the Royal Air Force flypast!

Another year, another Royal Air Force flypast, another fascinator -- Princess Eugenie in 2007!

Princess Eugenie at Easter mass in 2011.

Princess Eugenie attends day five of Royal Ascot at Ascot Racecourse on June 18, 2011 in Ascot, United Kingdom.

Prince Andrew, the Duke of York walks with daughters Princess Eugenie and Princess Beatrice at the wedding of Peter Phillips to Autumn Kelly, at St George's Chapel in 2008.

Princess Beatrice of York and Princess Eugenie of York attend Day 1 of Royal Ascot at Ascot Racecourse on June 17, 2014 in Ascot, England.

Sophie, Countess of Wessex and Princess Eugenie of York travel down in a horse drawn carriage during Trooping the Colour, Queen Elizabeth II's Birthday Parade in 2014.

Princess Eugenie of York watches the racing as she attends Day 1 of Royal Ascot at Ascot Racecourse in 2014.