AMSTERDAM, NETHERLANDS - NOVEMBER 13: Princess Beatrix of The Netherlands attends the ballet gala of foundation Dansersfonds 79 in theater DeLaMar the on October 12, 2017 in Amsterdam, Netherlands. (Photo by Patrick van Katwijk/Getty Images)
AMSTERDAM, NETHERLANDS - NOVEMBER 13: Princess Beatrix of The Netherlands attends the ballet gala of foundation Dansersfonds 79 in theater DeLaMar the on October 12, 2017 in Amsterdam, Netherlands. (Photo by Patrick van Katwijk/Getty Images)