06/17/2008 at 09:55 AM EDT
Fresh from tales of her nude romp
at school, Princess Eugenie landed in the more formal setting – and attire – alongside her grandmother, Queen Elizabeth, on Tuesday.
Fergie's 18-year-old royal daughter and her older sister, Princess Beatrice, 19, made their first appearance at the glamorous Royal Ascot horseracing event, where they rode in an open-topped carriage with Prince Charles and Camilla, the Duchess of Cornwall.
Their carriage was just one behind the Queen and their father, the Duke of York.
Eugenie, who is Sarah Ferguson's second daughter and sixth in line to the throne, hit the headlines over the weekend after it was revealed she and friends had frolicked naked at her $50,000-a-year boarding school in Wiltshire, England.
In keeping with tradition at Ascot (best known to Americans as where Eliza Doolittle yelled at the horse in My Fair Lady
), Eugenie and Beatrice both wore flamboyant hats, despite the day's high winds.
There was no sign of their mother (Fergie and Andrew separated in 1992, and divorced four years later). Their father was on hand, however, to demonstrate proper etiquette as they followed the Queen and Duke of Edinburgh into the royal enclosure.
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