Britain's Queen Elizabeth and Prince Philip (L) leave after the Easter Matins Service at Windsor Castle's St George's Chapel in Windsor April 24, 2011. The annual service attended by the queen and members of the Royal Family is one of the last formal royal engagements before the marriage of Prince William and Catherine Middleton in Westminster Abbey on April 29. [Photo/Agencies]

(L-R) Britain's Princess Eugenie, Sophie, Countess of Wessex, Tim Lawrence, Princess Beatrice, Princess Anne (obscured), Prince Andrew and Prince Edward arrive for the Easter Matins Service at Windsor Castle's St George's Chapel in Windsor April 24, 2011. [Photo/Agencies]

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