Peter Phillips married NHS nurse Harriet Sperling during a private ceremony at All Saints Church in Kemble, Gloucestershire, on Saturday. Phillips is the nephew of King Charles, and the son of the Princess Royal, Princess Anne. The couple's private ceremony, which was attended by the King, Queen Camilla and the Prince and Princess of Wales, followed an engagement announcement in August 2025. Here's what to know about the latest entrant to the Royal Family - and the couple's relationship so far.