TILBURG, NETHERLANDS - APRIL 27: Princess Alexia of The Netherlands attends the King's 50th birthday during the Kingsday celebrations on April 27, 2017 in Tilburg, Netherlands. (Photo by Patrick van Katwijk/Getty Images)
TILBURG, NETHERLANDS - APRIL 27: Princess Alexia of The Netherlands attends the King's 50th birthday during the Kingsday celebrations on April 27, 2017 in Tilburg, Netherlands. (Photo by Patrick van Katwijk/Getty Images)