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MADRID, SPAIN - MAY 30: King Felipe of Spain (L), Queen Letizia of Spain (R) and Beatrix of the Netherlands stand in front of 'The Garden of Earthly Delights' by Hieronymus Boschduring a visit to the 'El Bosco' 5th Centenary Anniversary Exhibition at El Prado Museum on May 30, 2016 in Madrid, Spain. (Photo by J. J. Guillén - Pool/Getty Images)

MADRID, SPAIN - MAY 30:  King Felipe of Spain (L), Queen Letizia of Spain (R) and Beatrix of the Netherlands stand in front of 'The Garden of Earthly Delights' by Hieronymus Boschduring a visit to the  'El Bosco' 5th Centenary Anniversary Exhibition at El Prado Museum on May 30, 2016 in Madrid, Spain. (Photo by J. J. Guillén - Pool/Getty Images)