As Peter Phillips prepares to marry NHS nurse Harriet Sperling on June 6, there’s been an increased spotlight on the otherwise low-key royal—and it turns out that he and sister Zara Tindall have a half-sister that not many royal fans know about.
Zara and Peter’s father is Princess Anne’s first husband, Captain Mark Phillips, and the Olympic gold medal winning equestrian has another daughter, Stephanie Phillips, from his second marriage. The 28-year-old’s mother is Sandy Pflueger, who was married to Captain Mark between 1997 and 2012, and fans can expect to see Stephanie at this weekend’s royal wedding.
