Prince Charles and his bride Diana share some private words during their wedding ceremony at at St Paul's Cathedral in London, July 29, 1981.
Wedding of Charles and Diana, 1981, in St Paul's Cathedral, London.
Getty Images / Keystone / Hulton Archive
They omitted "obey" from the bride's wedding vows, a custom increasingly common in the general public but somewhat controversial in a royal wedding. (Queen Victoria promised to obey her bridegroom, Prince Albert, in their ceremony.)