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WINDSOR, UNITED KINGDOM - MAY 14: (EMBARGOED FOR PUBLICATION IN UK NEWSPAPERS UNTIL 48 HOURS AFTER CREATE DATE AND TIME) Lady Penny Brabourne (formerly Lady Penny Romsey), HRH Prince Philip, The Duke of Edinburgh, and Norton Knatchbull, Lord Brabourne during day three of the Royal Windsor Horse Show 2009 on May 14, 2009 in Windsor, England. (Photo by Indigo/Getty Images)

WINDSOR, UNITED KINGDOM - MAY 14: (EMBARGOED FOR PUBLICATION IN UK NEWSPAPERS UNTIL 48 HOURS AFTER CREATE DATE AND TIME) Lady Penny Brabourne (formerly Lady Penny Romsey), HRH Prince Philip, The Duke of Edinburgh, and Norton Knatchbull, Lord Brabourne during day three of the Royal Windsor Horse Show 2009 on May 14, 2009 in Windsor, England. (Photo by Indigo/Getty Images)