AP Photo/Frank Augstein
Dresses worn by Princess Diana are displayed at the "Fashion Rules" exhibition at Kensington Palace in London on July 1, 2013.
Opening on July 4, the exhibit 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
An employee fixes a dress worn by Queen Elizabeth II on display at the "Fashion Rules" exhibition at Kensington Palace in London on July 1, 2013.
AP Photo/Frank Augstein
An employee cleans the glass cabinet displaying dresses worn by Queen Elizabeth II at the "Fashion Rules" exhibition at Kensington Palace in London on July 1, 2013.
AP Photo/Frank Augstein
An employee cleans the glass cabinet showing a turban and dress worn by Princess Margaret at the "Fashion Rules" exhibition at Kensington Palace in London on July 1, 2013.
AP Photo/Frank Augstein
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 on July 1, 2013.
AP Photo/Frank Augstein
Dresses worn by Princess Diana are displayed at the "Fashion Rules" exhibition at Kensington Palace in London on July 1, 2013.
Matthew Lloyd/Getty Images
A caftan and turban, designed by Carl Toms and worn by Princess Margaret, is displayed in the "Fashion Rules" exhibition at Kensington Palace on July 3, 2013, in London.
Matthew Lloyd/Getty Images
A caftan and turban, designed by Carl Toms and worn by Princess Margaret, is displayed in the "Fashion Rules" exhibition at Kensington Palace on July 3, 2013, in London.
Matthew Lloyd/Getty Images
An evening gown, designed by Norman Hartnell and once worn by Queen Elizabeth II, is displayed in the "Fashion Rules" exhibition at Kensington Palace on July 3, 2013, in London.
Matthew Lloyd/Getty Images
An evening gown, designed by Norman Hartnell and once worn by Queen Elizabeth II, is displayed in the "Fashion Rules" exhibition at Kensington Palace on July 3, 2013, in London.
Matthew Lloyd/Getty Images
Costumes ranging from summer dresses to formal wear are displayed in the "Fashion Rules" exhibition at Kensington Palace on July 3, 2013, in London.
Matthew Lloyd/Getty Images
Costumes ranging from summer dresses to formal wear are displayed in the "Fashion Rules" exhibition at Kensington Palace on July 3, 2013, in London.
Matthew Lloyd/Getty Images
Costumes ranging from summer dresses to formal wear are displayed in the "Fashion Rules" exhibition at Kensington Palace on July 3, 2013, in London.
