Kate Middleton Will Not Be Called Princess

Chris Jackson/Getty Images

She'll go by "Her Royal Highness the Duchess of Cambridge" until her father-in-law, Prince Charles, becomes King.

LONDON -- It’s no more Prince William and Kate. Britain woke to the news on Royal Wedding day that the Queen has conferred the bride and groom with the new titles of  William, Duke of Cambridge and Catherine, Her Royal Highness the Duchess of CambridgePHOTOS: Kate Middleton and Prince William say "I Do"

The Duke and Duchess, as they will now be known, also retain titles that connect them to Ireland and Scotland, but will not take the titles of Prince and Princess until the current Prince of Wales becomes King. PHOTOS: What Kate Middleton and famous guests wore to the wedding

The announcement came as excitement about the ceremony reached fever pitch in London as guests began arriving at Westminster Abbey from 8.15 am GMT Friday morning. Despite the cool weather and overcast skies, the excitement was palpable.

Months of meticulous planning and preparation have gone into to the wedding at Westminster Abbey, which will take place before 1900 guests and will be watched by a television audience of as many as two billion. PHOTOS: Famous royal weddings

Earlier, overnight campers - some of whom have spent two or three nights camping out in London parks to make sure of ringside seats lining the Mall and in front of Buckingham Palace – were delighted by an unexpected appearance of Prince William the night before the wedding.

William was given an ecstatic reaction by crowds outside Clarence House as he shook hands chatted and joked with members of the public who cheered his surprise appearance. PHOTOS: The 9 wackiest wedding celebrations

“All I’ve got to do is get my lines right,” he joked, according to news reports.