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THE HAGUE, NETHERLANDS - AUGUST 31: Princess Beatrix of The Netherlands speaks with board members and patients during the dance event 'Free to Move' at the Zuiderstrandtheater on August 31, 2017 in The Hague, Netherlands. The event, a collaboration between Holland Dance and the Princess Beatrix Muscle foundation, was held to benefit the fight against muscular diseases. (Photo by Patrick van Katwijk/Getty Images)

THE HAGUE, NETHERLANDS - AUGUST 31: Princess Beatrix of The Netherlands speaks with board members and patients during the dance event 'Free to Move' at the Zuiderstrandtheater on August 31, 2017 in The Hague, Netherlands. The event, a collaboration between Holland Dance and the Princess Beatrix Muscle foundation, was held to benefit the fight against muscular diseases. (Photo by Patrick van Katwijk/Getty Images)