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ROTTERDAM, NETHERLANDS - APRIL 19: King Willem-Alexander of The Netherlands, Queen Maxima of The Netherlands, Princess Amalia of The Netherlands and Princess Ariane of The Netherlands attend the Kingsday concert in Ahoy on April 19, 2023 in Rotterdam, Netherlands. (Photo by Patrick van Katwijk/Getty Images)

ROTTERDAM, NETHERLANDS - APRIL 19: King Willem-Alexander of The Netherlands, Queen Maxima of The Netherlands, Princess Amalia of The Netherlands and Princess Ariane of The Netherlands attend the Kingsday concert in Ahoy on April 19, 2023 in Rotterdam, Netherlands. (Photo by Patrick van Katwijk/Getty Images)