Zara Tindall is set to miss this weekend's royal Easter Sunday celebrations, just as King Charles returns to the public eye.
The 42-year-old will instead travel to Thoresby Hall in Nottinghamshire on Good Friday to compete in a three-day equestrian event.
The former world and European champion will compete with two horses in the Advanced competition at the Eventing Spring Carnival at Thoresby Park, near Ollerton.
This event will take place from Friday, March 29, until Sunday, March 31.
Zara Tindall will be in Nottinghamshire over the weekend
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This means Zara is set to miss the royal Easter Sunday service at St George's Chapel, which both King Charles and Queen Camilla will attend.
In recent years, Zara has been a firm attendee at the Easter Sunday service, alongside her husband Mike, 45, and three children, Mia, 10, Lena, five, and Lucas, three.
Princess Anne's daughter will instead attend the Eventing Spring Carnival, the first international event of the British season.
It will be attended by equestrian fans from all over the country.
Zara Tindall is a world-class equestrian
PA
Zara will compete in the dressage phase on Good Friday, followed by the cross-country phase on the lawns of Thoresby Hall on Saturday.
There are more than 700 entries in this year's event, including Pippa Funnell in the sole Advanced class on Saturday.
The Rolex Grand Slam winner and author of popular children’s books will take the course with Majas Hope and MCS Maverick.
Buckingham Palace confirmed that King Charles would attend this Sunday's religious service.
Zara Tindall competed in the Olympic Games in 2012
PA
The King had stepped back from public-facing duties following his cancer diagnosis last month.
This Sunday's service at St George's Chapel in Windsor Castle will mark the first time Charles has returned to the public eye in nearly two months.
Despite stepping back from public-facing duties, the Monarch has been continuing to work behind-the-scenes and meeting the Prime Minister for their weekly chats.
Since the King and the Princess of Wales announced their cancer diagnoses, many royal commentators have stressed the need for more working royals, such as Zara Tindall.
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Mike Tindall and Zara Tindall attending the Easter Sunday service in 2023
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Royal commentator Angela Levin told GB News: "My own view is that [King Charles] could have Zara, who is the daughter of Princess Anne, because she and her husband Mike, who comes also from an ordinary background, but fits in beautifully with the Royal Family. He could do it very well.
"They're very popular, they're very nice, they're jolly, they're honourable, they're loyal to all the Royal Family. So he could do that."
However, the commentator is not as keen for Princess Beatrice and Princess Eugenie to step up as working royals.
Levin explained: "That's very difficult because you don't know whether they, who are quite friendly with Harry, would maybe leak something or whether it would be awkward because of the problems that Prince Andrew is still having."