Diana, Princess of Wales have a paying job before her engagement. She made her first public appearance with Prince Charles in a charity ball in March 1981 at Goldsmiths' Hall, where she met the Princess of Monaco. Twenty-year-old Diana became Princess of Wales when she married the Prince of Wales on 29 July 1981 at St Paul's Cathedral, which offered more seating than Westminster Abbey, a church that was generally used for royal nuptials. The service was widely described as a "fairytale wedding" and was watched by a global television audience of 750 million people while 600,000 spectators lined the streets to catch a
Diana, Princess of Wales glimpse of the couple en route to the ceremony. At the altar, Diana inadvertently reversed the order of Charles's first two names, saying "Philip Charles" Arthur George instead. She did not say that she would "obey" him; that traditional vow was left out at the couple's request, which caused some comment at the time. Diana wore a dress valued at £9,000 with a 25-foot (7.62-metre) train. After she became Princess of Wales, Diana automatically acquired rank as the third-highest female in the United Kingdom Order of Precedence (after the Queen and the Queen Mother), and was fifth or sixth in