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THE HAGUE, NETHERLANDS - AUGUST 31: Countess Eloise of The Netherlands and Countess Leonore of The Netherlands, granddaughters of Princess Beatrix, attends 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: Countess Eloise of The Netherlands and Countess Leonore of The Netherlands, granddaughters of Princess Beatrix, attends 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)