When the Duke and Duchess of Cambridge were married at Westminster Abbey in April 2011, they followed a long line of British royal weddings. However, their wedding would have been seen by more people than any other. Although the Abbey was full to its 2,200 capacity, nearly a billion people worldwide tuned in to watch live coverage or news highlights of the wedding.
None would have been prouder than the Duke of Cambridge's grandmother, Her Majesty Queen Elizabeth II, who married Lieutenant Philip Mountbatten RN here during post-war austerity in 1947.
Elizabeth II's father, His Majesty King George VI, exchanged vows with Lady Elizabeth Bowes-Lyon at the High Altar in April 1923.
Elizabeth II's sister HRH The Princess Margaret was married here in 1960 and of the current Royal Family, HRH The Princess Alexandra, HRH The Princess Royal and HRH The Duke of York were all married on the steps of the High Altar.
In all, 16 royal weddings have taken place in the Abbey and the tradition goes back nine hundred years - to Henry I who married Princess Matilda of Scotland in 1100.