Prince William and Princess Kate are anticipated to attend the wedding of Peter Phillips and Harriet Sperling on June 6, 2025, at All Saints Church in Kemble, Cirencester. This occasion marks a significant moment for William, who missed Peter's first wedding in 2008 due to attending a friend's wedding in Africa. A royal source confirmed their attendance, stating, 'William and Catherine will be at the wedding ceremony and reception.' Alongside them, King Charles and Queen Camilla are expected, although they will depart shortly after the ceremony for the Epsom Derby. Other royals likely to attend include the Duke and Duchess of Edinburgh, Princess Anne, and Zara Tindall. Notably, Prince Harry and Meghan Markle are not invited, reflecting their ongoing estrangement from the family. Peter and Harriet's relationship began in spring 2024, leading to their engagement announcement on August 1, 2025, after a year of dating, showcasing their integration into royal events.