In this photo taken Monday July 1, 2013, an employee fixes a dress worn by Princess Margaret to a film premier in London and to a dinner in Paris as a guest of Prince Paul of Yugoslavia in 1951, at the Fashion Rules exhibition at Kensington Palace in London. Opening on 4 July, a new glamorous exhibit at Kensington Palace showcases how the styles of three royal ladies; Queen Elizabeth II, her sometimes risque sister Margaret, and the glamorous Princess Diana, each reflected and influenced the trends of their fashion heyday. (AP Photo/Frank Augstein)
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