LONDON, ENGLAND - APRIL 29: Queen Sofia of Spain, Prince Felipe of Asturias and Princess Letizia of Asturias arrive to attend the Royal Wedding of Prince William to Catherine Middleton at Westminster Abbey on April 29, 2011 in London, England.  (Photo by Anwar Hussein/Getty Images)
LONDON, ENGLAND - APRIL 29:  Queen Sofia of Spain, Prince Felipe of Asturias and Princess Letizia of Asturias arrive to attend the Royal Wedding of Prince William to Catherine Middleton at Westminster Abbey on April 29, 2011 in London, England. The marriage of the second in line to the British throne is to be led by the Archbishop of Canterbury and will be attended by 1900 guests, including foreign Royal family members and heads of state. Thousands of well-wishers from around the world have also flocked to London to witness the spectacle and pageantry of the Royal Wedding.  (Photo by Chris Jackson/Getty Images)
LONDON, ENGLAND - APRIL 29:  (L-R) Queen Sofia of Spain, Prince Felipe of Spain and Princess Letizia of Spain depart for a procession to Buckingham Palace following the marriage of Their Royal Highnesses Prince William Duke of Cambridge and Catherine Duchess of Cambridge at Westminster Abbey on April 29, 2011 in London, England. The marriage of the second in line to the British throne was led by the Archbishop of Canterbury and was attended by 1900 guests, including foreign Royal family members and heads of state. Thousands of well-wishers from around the world have also flocked to London to witness the spectacle and pageantry of the Royal Wedding.  (Photo by Dan Kitwood/Getty Images)
LONDON, ENGLAND - APRIL 29:  Princess Letizia of Asturias looks on with Queen Sofia of Spain and Prince Felipe of Asturias as they arrive to attend the Royal Wedding of Prince William to Catherine Middleton at Westminster Abbey on April 29, 2011 in London, England. The marriage of the second in line to the British throne is to be led by the Archbishop of Canterbury and will be attended by 1900 guests, including foreign Royal family members and heads of state. Thousands of well-wishers from around the world have also flocked to London to witness the spectacle and pageantry of the Royal Wedding.  (Photo by Chris Jackson/Getty Images)