5 secrets you didn't know about Princess Diana and Prince Charles' wedding

Prince Charles wed Lady Diana Spencer on July 29, 1981 in front of 3,500 guests at St Paul's Cathedral, London.

Her dress is a royal wedding icon, but it's a little known fact that the bride spilled perfume down her front moments before she had to depart for the wedding venue.

Diana and Charles share a kiss on Buckingham Palace balcony - much to the delight of the crowds present below.

Her dress featured a 25ft train and became quite creased on the journey to St Paul's

Diana was very mindful of not towering over her groom on the big day and purposefully chose shoes that featured a low heel.