Peter Phillips and Harriet Sperling were joined by some of their royal guests this afternoon, ahead of their highly anticipated wedding tomorrow.
The family dressed down as they prepared for the rehearsals at All Saints Church in Kemble, Gloucestershire.
The 12th-century Cotswolds venue, situated near Princess Anne's Gatcombe Park estate, welcomed around 30 guests shortly after 5pm.
Peter, dressed in a striped button-down shirt with the sleeves rolled up, dark chinos, brown leather Chelsea boots and a green bodywarmer, cut a relaxed figure.
Harriet, meanwhile, was seen beaming from ear to ear as she opted for a cream, red-striped knit sweater with an elegant light stone midi skirt.
Zara Tindall, who arrived wearing wraparound sunglasses, a grey top and jeans, joined the couple and was spotted chatting warmly with the assembled party before heading inside.
The three teenage bridesmaids — believed to be Savannah Phillips, 15, Isla Phillips, 14, and Harriet's daughter Georgina, 14 — were spotted near the church entrance.
The young trio rehearsed their duties by holding an imaginary veil aloft before stepping through the doorway together in perfect unison.
Peter dressed in a striped button-down shirt with the sleeves rolled up, dark chinos, brown leather Chelsea boots and bodywarmer
|PA
Harriet was seen beaming from ear to ear, as she opted for a cream, red-striped knit sweater with an elegant light stone midi skirt
|PA
Tomorrow's ceremony is expected to draw a distinguished gathering of senior royals to the intimate Gloucestershire affair.
King Charles and Queen Camilla are anticipated to attend, alongside the Prince and Princess of Wales.
Princess Anne, mother of the groom, will naturally be present with her husband, Vice Admiral Sir Tim Laurence.
The Duke and Duchess of Edinburgh are also among those expected to watch on.
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The three teenage bridesmaids were spotted near the church entrance
|PA
Zara and her husband Mike Tindall will see her brother exchange vows with his NHS nurse fiancée.
Police officers could be seen conducting thorough checks of the churchyard and surrounding grounds ahead of the ceremony.
Authorities are preparing to close several roads in the village tomorrow morning to ensure the safety of the royal guests.
Inside the historic venue, work crews have been busy transforming the space for the occasion.
Large urns, floral arrangements and various plants were carried into the church as decorators began preparing for the service.
The event is being coordinated by Bentley's Entertainments, a prestigious firm with an impressive portfolio of high-profile celebrations.
The company previously organised David and Victoria Beckham's wedding, numerous events for Sir Elton John, and Princess Eugenie's Windsor nuptials to Jack Brooksbank.
Bentley's also handled Peter's first wedding to Autumn Kelly at St George's Chapel in 2008.
Peter and Harriet first stepped out publicly together at the Badminton Horse Trials in May 2024, with their romance progressing swiftly.
They confirmed their engagement in August last year, with both families declaring themselves "delighted" by the news.
Peter proposed with a ring carrying a touching tribute to his late grandmother, the Queen, having been crafted by the same jeweller who designed her iconic 1946 engagement ring.
The wedding date was officially announced in April this year.
Peter, who sits 19th in the line of succession, and Harriet, 45, have been described by friends as appearing "so comfortable together."
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