GRASTEN, DENMARK - JULY 16: Crown Princess Mary of Denmark attends the Ringsted horse ceremony at Grasten Slot during their summer vacation on July 16, 2017 in Grasten, Denmark. (Photo by Patrick van Katwijk/Getty Images)
GRASTEN, DENMARK - JULY 16: Crown Princess Mary of Denmark attends the Ringsted horse ceremony at Grasten Slot during their summer vacation on July 16, 2017 in Grasten, Denmark. (Photo by Patrick van Katwijk/Getty Images)