STROUD, ENGLAND - MARCH 25: Mia Tindall and Isla Phillips attend The Gatcombe Horse Trials at Gatcombe Park on March 25, 2017 in Stroud, England. (Photo by Mark Cuthbert/UK Press via Getty Images)
STROUD, ENGLAND - MARCH 25: Mia Tindall and Isla Phillips attend The Gatcombe Horse Trials at Gatcombe Park on March 25, 2017 in Stroud, England. (Photo by Mark Cuthbert/UK Press via Getty Images)