Prince Ricardo De La Cerda
They were located in the row behind Prince Harry, Princess Eugenie, Jack Brooksbank, Princess Beatrice, the Duke of York and Edoardo Mapelli Mozzi.
The first row in the Abbey was reserved for the Prince and Princess of Wales, Prince Louis and Princess Charlotte, as well as the Duke and Duchess of Edinburgh.
The Princess Royal and her husband, Sir Timothy Laurence, were in the second row, alongside the Duke and Duchess of Gloucester.
Despite the Royal family having the best seats in the Abbey, Mr Tindall said the majority of the ceremony took place out of their eye-line.
Organisers had placed flat-screen televisions around the Abbey for the 2,300 guests to be able to watch the moment of crowning.