The world waits for a glimpse of Prince George: Well-wishers set up camp outside St James's Palace to catch sight of the newest royal on the way to his christening Three months after the future king's birth, fans have braved the wind and rain overnight in London to be there today George will be baptised by the Archbishop of Canterbury in the Chapel Royal at St James's Palace this afternoon Guest list is secret but it is known to be a small family affair, with some of William's uncles and aunts not invited The Queen and Duke of Edinburgh to celebrate with the Prince of Wales, the Duchess of Cornwall and Prince Harry Kate's family will attend the event, which will see the Queen with three future monarchs - Charles, William and George Godparents will also be named today, with close friends Hugh van Cutsem and Thomas van Straubenzee front-runners Royal well-wishers have spent a rain-soaked night outside St James's Palace because the Duke and Duchess of Cambridge's son Prince George will be christened today in front of close family and friends of his parents. Many of the fans, draped in Union Flags, have returned to London three months after spending weeks sleeping outside the Lindo Wing in Paddington where the heir to the throne was born on July 22. The future king will be baptised by the Archbishop of Canterbury, the Most Rev Justin Welby, in the little known Chapel Royal at St James's Palace this afternoon. Waking up on the big day: Royal fan Terry Hut and friends waits outside St James's Palace hours before the is third in line to the throne will be christened Braving the wind and rain: Royal fans wait outside the chapel of St James overnight, ready for the christening of Prince George and hopefully a glimpse of the future king Grabbing some sleep: Many of the well-wishers slept in chairs in the open-air as they returned to London three months after George's birth Royal supporters: Well-wishers (left to right) Terry Hutt, Julie Cain, Marie Scott and John Loughrey brave the bad weather as they set up camp up outside the Chapel Royal, St James's Palace in London ahead of the christening of Prince George today Security: There is a large police presence and barriers are already in place in preparation for the crowds The Queen and Duke of Edinburgh are expected to be at the ceremony along with the Prince of Wales, who has become a grandfather for the first time, the Duchess of Cornwall and Prince Harry. Kate's family - parents Carole and Michael Middleton and siblings Pippa and James - are thought to be invited, along with the godparents who, like the guests, have not been publicly named. There has been speculation about who the Cambridges might choose to be their son's mentors. The Most Rev Justin Welby, who has already spoken of the 'great privilege and honour' of baptising George, said today he hoped that others will be inspired to seek the same ceremony for themselves and their children. Special moment: The Duke and Duchess of Cambridge have chosen famed photographer Jason Bell to capture the event, who will produce a new set of official photographs for the public to enjoy Godparents? Prince William's childhood friends Thomas van Straubenzee (left) and Hugh Van Cutsem (right) are believed to be among the contenders for the role of godfather Royal occasion: A fan holding a christening celebration balloon watches as members of the Grenadier Guards mount guard outside outside the palace gates Close friends Hugh van Cutsem and Thomas van Straubenzee are thought to be in the running along with Old Etonian James Meade and interior designer Emilia d'Erlanger, who has known both William and Kate for a number of years. The royal couple have chosen celebrity portrait photographer Jason Bell to take the official pictures to mark the christening. The pictures will show the Queen with three future monarchs - Charles, William and George. Historic: The christening of Prince Edward Albert, later King Edward VIII, with the Duke of York, later King George V, right, the Prince of Wales, later Edward VII, left, and Queen Victoria Flashback: This small crowd of fans was among many who slept outside the hospital for weeks waiting for Prince George to be born Chose: Jason Bell will take the official photographs at Clarence House following the service in the Chapel Royal