Peter Phillips is preparing to marry NHS nurse Harriet Sperling on June 6, and one of the more unexpected names linked to the ceremony is his 28-year-old half-sister, Stephanie Phillips. She is expected to attend the wedding, a quiet but notable appearance from a member of Princess Anne’s extended family who is usually seen well away from the spotlight.
That is why interest in the Zara Tindall sibling Stephanie Phillips has picked up ahead of the ceremony. Peter, the son of Princess Anne, and Stephanie share a close relationship, and her presence matters because she has rarely been visible at royal gatherings despite her family ties. She served as a bridesmaid at Zara Tindall’s wedding to Mike Tindall in 2011 and again at Peter’s first wedding to Autumn Kelly, making her expected appearance on June 6 a familiar one within the family even if it is unusual for the public.
Stephanie is the daughter of Captain Mark Phillips and Sandy Pflueger, who was married to Mark from 1997 to 2012. She married William Hosier in 2022 after announcing her engagement on Instagram in May 2021, and she has occasionally been seen cheering on Zara at equestrian events over the years. Those glimpses have been rare enough that each appearance tends to draw notice, especially when it comes in the middle of a royal family event that is already set to bring together senior figures including King Charles, Queen Camilla, the Prince and Princess of Wales, and the Duke and Duchess of Edinburgh.
The question now is not whether Stephanie belongs in the family picture; it is whether her appearance will stop at the congregation or include any formal role in the day. For now, the clearest thing to watch is simply her arrival at Peter and Harriet’s wedding, because that will be the first time many royal watchers have seen her at a public family celebration in years.
