STROUD, UNITED KINGDOM - MARCH 25: (EMBARGOED FOR PUBLICATION IN UK NEWSPAPERS UNTIL 48 HOURS AFTER CREATE DATE AND TIME) Autumn Phillips and daughter Isla Phillips attend the Gatcombe Horse Trials at Gatcombe Park on March 25, 2017 in Stroud, England. (Photo by Max Mumby/Indigo/Getty Images)
STROUD, ENGLAND - MARCH 25: Autumn Phillips, Peter Phillips and Mia Tindall during the Gatcombe Horse Trials at Gatcombe Park on March 25, 2017 in Stroud, England. (Photo by Anwar Hussein/WireImage)
STROUD, ENGLAND - MARCH 25: Peter Phillips and Autumn 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: Peter Phillips, Autumn Phillips, Savannah Phillips and Mia Tindall 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: Zara Phillips competes on Rum Expectations at The Gatcombe Horse Trials at Gatcombe Park on March 25, 2017 in Stroud, England. (Photo by Mark Cuthbert/UK Press via Getty Images)
