The 28-year-old princess, who is ninth in line to the throne, is due to marry liquor company executive Brooksbank Friday in St. George's Chapel at Windsor Castle. The pair have been photographed together on multiple royal occasions, including on the balcony of Buckingham Palace for Trooping of the Colour, as well as sharing a carriage for the Royal Ascot, where they were joined by Prince Charles and Princess Beatrice.
Eugenie's fiancé Jack has asked his brother, Thomas Brooksbank, to be Best Man.
Also taking up the role of bridesmaids will be Savannah and Isla Phillips, the daughters of Peter and Autumn Phillips.
Mia is the daughter of Mrs Zara Tindall and Mr Mike Tindall.
Robbie Williams' daughter will be a bridesmaid at Princess Eugenie's wedding. In fact, it was on a family ski trip in 2010 where Eugenie met her soon-to-be-husband. Since then the princess has posted a series of photos including some pretty adorable throwbacks of her and sister Princess Beatrice.
The Queen will host a wedding reception at Windsor Castle for the couple and their guests.
The Earl and Countess of Wessex's children, Lady Louise Windsor and Viscount Severn will be special attendants on the day.