Multiple reports say Stephanie Tindall—Zara Tindall’s half-sister—is expected to be among the guests at Peter Phillips’ wedding. The accounts describe Stephanie, 28, as a Worcester-based eventing professional who shares interests with other members of the royal family, including horses and equestrian pursuits. Sources also portray a close relationship between Stephanie and Peter Phillips. One report quotes Stephanie describing Peter as “the best big brother out there,” suggesting a personal bond that goes beyond family ties. The articles frame her expected attendance as part of the broader group of relatives and associates connected to Zara and Peter, with a focus on the family’s shared social and recreational activities. While the reports emphasize the relationship and lifestyle connections, they do not add widely differing details about wedding specifics such as timing, location, or the full guest list. Overall, the coverage is consistent that Stephanie Tindall is part of the circle attending Peter Phillips’ wedding, with attention on her background and connection to Peter.