Princess Eugenia and Jack Brooksbank will tie the knot next month in the second royal wedding of 2018.
The couple got engaged in Nicaragua in January and the ceremony is likely to attract all of the senior members of the royal family.
The ceremony will begin at 11am and a reception will be held by the Queen shortly after.
The royal couple have chosen the same venue as Prince William and Mehgan Markle – St George’s Chapel, Windsor Castle.
The chapel has room for 800 guests and has been a venue for royal weddings since the future King Edward VII married Princess Alexandra of Denmark in 1893.
The Dean of Windsor, The Right Reverend David Conner will officiate, while the Archbishop of York, the Most Reverend and Right Honorable John Sentamu will lead the prayers.
The wedding will take place on Friday, October 12.
However the wedding will extend to two days, with reports there will be a festival with a fairground and afternoon tea in the afternoon.
Princess Eugenie and Jack Brooksbank have invited 1200 members of the public to watch the wedding from inside the grounds of Windsor Castle, much the same as at Harry and Meghan’s wedding.
More than 10,000 people applied to attend the royal wedding.
Princess Eugenie is close friends with model Cara Delevinge, singer Ellie Goulding and the Duke of Sussex’s former girlfriends, Cheesy Davy and Cressida Bonas, all of whom are expected to attend.
In the evening, selected guests will be allowed to celebrate with the newlyweds at an event hosted by the princess’ parents.
The second wedding reception will reportedly be held at Royal Lodge in Windsor, which has been the official country residence of the Duke of York since 2004.
Princess Eugenie has not announced who she has chosen to be bridesmaids, but in an interview with British Vogue she revealed her older sister Princess Beatrice will be her Maid of Honour.
Beatrice said of her sister in the September 2018 issue: “Euge is amazing. She’s a very modern bride.”
The only clue Eugenie has given about her address is that she will choose a British-based designer.
In an interview on The One Show in January, Princess Eugenie said she had not yet decided on the type of dress she wanted, beyond “no meringue shoulders.”
Eugenie has a choose of British designers, including Stella McCartney, Emilia Wickstead, Erdem, Vivienne Westwood, Gainsbourg, Ralph & Russo and Alexandra McQueen.
The couple will undertake a carriage ride through the town of Windsor, but the route will be slightly shorter than the route taken by the Duke and Duchess of Sussex.
The carriage will travel through the grounds of Windsor Castle, enter the town at Castle Hill and proceed along Windsor High Street, then return to the castle grounds at Cambridge gate.