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LONDON, UNITED KINGDOM - JULY 14: Bride Sarah Armstrong-Jones daughter of Britain's Princess Margaret and Lord Snowdon with her groom Daniel Chatto after their wedding at St Stephen Walbrook in the City 14 July 1994. Many members of the British Royal Family attended the ceremony. (FILM) (Photo credit should read ADRIAN CLACK/AFP/Getty Images)

LONDON, UNITED KINGDOM - JULY 14:  Bride Sarah Armstrong-Jones daughter of Britain's Princess Margaret and Lord Snowdon with her groom Daniel Chatto after their wedding at St Stephen Walbrook in the City 14 July 1994. Many members of the British Royal Family attended the ceremony. (FILM)  (Photo credit should read ADRIAN CLACK/AFP/Getty Images)