LONDON, ENGLAND - APRIL 29: Father of the bride Michael Middleton prepares to lead his daughter Miss Catherine Middleton down the aisle to be wed to Prince William during their wedding at Westminster Abbey on April 29, 2011 in London, England. Also pictured are Alexander McQueen Creative Director Sarah Burton (left) and Dean of Westminster John Robert Hall (right). The marriage of Prince William, the second in line to the British throne, to Catherine Middleton is being held in London today. 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 Jon Bond - WPA Pool/Getty Images)