STOCKHOLM, SWEDEN - JUNE 08: Princess Martha Louise and Ari Behn attend the wedding of Princess Madeleine of Sweden and Christopher O'Neill hosted by King Carl Gustaf and Queen Silvia at The Royal Palace on June 8, 2013 in Stockholm, Sweden. (Photo by Mark Cuthbert/Julian Parker/UK Press via Getty Images)
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UK Press Mark Cuthbert/Julian Parker

STOCKHOLM, SWEDEN - JUNE 08: Princess Martha Louise and Ari Behn attend the wedding of Princess Madeleine of Sweden and Christopher O'Neill hosted by King Carl Gustaf and Queen Silvia at The Royal Palace on June 8, 2013 in Stockholm, Sweden. (Photo by Mark Cuthbert/Julian Parker/UK Press via Getty Images)
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UK Press Mark Cuthbert/Julian Parker

STOCKHOLM, SWEDEN - JUNE 08: Princess Martha Louise and Ari Behn attend the wedding of Princess Madeleine of Sweden and Christopher O'Neill hosted by King Carl Gustaf and Queen Silvia at The Royal Palace on June 8, 2013 in Stockholm, Sweden. (Photo by Mark Cuthbert/Julian Parker/UK Press via Getty Images)
Getty Images

UK Press Mark Cuthbert/Julian Parker

STOCKHOLM, SWEDEN - JUNE 08: Princess Martha Louise of Norway attends the wedding of Princess Madeleine of Sweden and Christopher O'Neill hosted by King Carl Gustaf XIV and Queen Silvia at The Royal Palace on June 8, 2013 in Stockholm, Sweden. (Photo by Pascal Le Segretain/Getty Images)
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Getty Images Entertainment Pascal Le Segretain