Iconic wedding: Prince Charles and Diana Spencer

Twenty-year-old Diana became The Princess of Wales when she married Charles on 29 July 1981 at St Paul's Cathedral, which offered more seating than Westminster Abbey, generally used for royal nuptials. It was widely billed as a "fairytale wedding", watched by a global television audience of 750 million while 600,000 people lined the streets to catch a glimpse of Diana en route to the ceremony.