Zara Tindall joined forces with her future sister-in-law, Harriet Sperling, at today's Cheltenham Festival.
Mrs Tindall, 44, looked lovely in a plum wool "Finchley" coat from The Fold London, which she paired with a £450 "Rio" velvet bandeau headband from Sally Ann Provan.
To accessorise, the mother-of-three carried a crackled leather M bag in burgundy from Maje, which retails for £329.
She attended alongside her husband, Mike Tindall, who posed for photographs with Ms Sperling and her fiancé, Peter Phillips, the elder brother of Mrs Tindall.
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Ms Sperling, 45, wore the Winchester Coat Dress Check from Suzannah, a brand famously loved by the Duchess of Edinburgh, who wore the label at King Charles's Coronation in 2023.
The £2,550 "soft and feminine coat dress" is made from "beautiful Virgin wool check tweed", according to the product description.
Mr Phillips's fiancée carried the "Mortimer" textured-leather clutch from Anya Hindmarch in mint, which retails for £1,150.
Finally, Ms Sperling donned the £250 "Selene" wool felt cocktail hat in brown from Jane Taylor London.
Zara Tindall joins forces with future sister-in-law Harriet Sperling at Cheltenham
|PA
Mr Phillips and Ms Sperling have been dating for nearly two years, having first met in early 2024.
They made their first public appearance as a couple on May 12, 2024 at the Badminton Horse Trials in Gloucestershire.
Their engagement was officially announced on August 1, 2025.
A statement issued for the couple by Gerard Franklin, Mr Phillips's spokesman, read: "Mr Peter Phillips, the son of HRH The Princess Royal and Captain Mark Phillips and Ms Harriet Sperling, daughter of the late Mr Rupert Sanders and Mrs Mary Sanders of Gloucestershire, have today confirmed their official engagement.
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Zara Tindall and Harriet Sperling posing with their partners, Mike Tindall and Peter Phillips
|REUTERS
"Both families were informed jointly of the announcement and were delighted with the wonderful news of their engagement.
"Their Majesties The King and Queen, The Prince and Princess of Wales have been informed of the announcement.
"No date has been officially set for the wedding."
Today marks the first time Mr Phillips and Ms Sperling attended the Cheltenham Festival in 2026, unlike the Tindalls, who were present every day this week.
Harriet Sperling and Peter Phillips are getting married at some point this year
|PA
Ms Sperling, soon to marry into the Royal Family, is a senior NHS paediatric nurse specialist and a freelance writer.
Mr Phillips, the eldest child of Princess Anne, was previously married to Autumn Kelly and dated Lindsay Wallace for three years before starting his relationship with Ms Sperling.
He has two teenage daughters with Ms Kelly, Savannah, 15, and Isla, 13.
Meanwhile, Ms Sperling has one daughter named Georgina, who was born in 2012.