Princess Eugenie is the Queen’s granddaughter and is ninth in line to the throne
Princess Eugenie is marrying Jack Brooksbank. The BBC’s Royal correspondent Daniela Relph is among the crowds.
The ceremony is being held at 11:00 BST in St George’s Chapel at Windsor Castle
Prince George will be a page boy, and Princess Charlotte will be a bridesmaid
Princess Eugenie’s fiance, Jack Brooksbank, proposed in January this year
The couple invited 1,200 members of the public to watch the wedding