Peter Phillips and his fiancée Harriet Sperling made their first appearance at this year's Cheltenham Festival, Harriet looking incredibly elegant in her checkered dress coat 🖤🤍 The son of Princess Anne, 48, and his wife to be, 45, joined fellow members of the royal family for the race day, taking a sweet photo with Peter's sister Zara Tindall and her husband Mike ✨ 📸 : Getty #TheRoyalFamily