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APELDOORN, NETHERLANDS - MARCH 22 : Princess Beatrix of The Netherlands opens the exhibition 'Chapeaux, hats of Queen Beatrix' in Palace het Loo on March 22, 2017 in Apeldoorn, Netherlands. The exhibition shows 100 hats of Queen Beatrix worn during her reign from 1980 till 2013. The hats are designed by Emy Bloemheuvel, Suzanne Moulijn and Harry Scheltens. (Photo by Patrick van Katwijk/Getty Images)

APELDOORN, NETHERLANDS - MARCH 22 : Princess Beatrix of The Netherlands opens the exhibition 'Chapeaux, hats of Queen Beatrix' in Palace het Loo on March 22, 2017 in Apeldoorn, Netherlands. The exhibition shows 100 hats of Queen Beatrix worn during her reign from 1980 till 2013. The hats are designed by Emy Bloemheuvel, Suzanne Moulijn and Harry Scheltens. (Photo by Patrick van Katwijk/Getty Images)

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APELDOORN, NETHERLANDS - MARCH 22 : Princess Beatrix of The Netherlands opens the exhibition 'Chapeaux, hats of Queen Beatrix' in Palace het Loo on March 22, 2017 in Apeldoorn, Netherlands. The exhibition shows 100 hats of Queen Beatrix worn during her reign from 1980 till 2013. The hats are designed by Emy Bloemheuvel, Suzanne Moulijn and Harry Scheltens. (Photo by Patrick van Katwijk/Getty Images)

APELDOORN, NETHERLANDS - MARCH 22 : Princess Beatrix of The Netherlands opens the exhibition 'Chapeaux, hats of Queen Beatrix' in Palace het Loo on March 22, 2017 in Apeldoorn, Netherlands. The exhibition shows 100 hats of Queen Beatrix worn during her reign from 1980 till 2013. The hats are designed by Emy Bloemheuvel, Suzanne Moulijn and Harry Scheltens. (Photo by Patrick van Katwijk/Getty Images)

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APELDOORN, NETHERLANDS - MARCH 22 : Princess Beatrix of The Netherlands opens the exhibition 'Chapeaux, hats of Queen Beatrix' in Palace het Loo on March 22, 2017 in Apeldoorn, Netherlands. The exhibition shows 100 hats of Queen Beatrix worn during her reign from 1980 till 2013. The hats are designed by Emy Bloemheuvel, Suzanne Moulijn and Harry Scheltens. (Photo by Patrick van Katwijk/Getty Images)

APELDOORN, NETHERLANDS - MARCH 22 : Princess Beatrix of The Netherlands opens the exhibition 'Chapeaux, hats of Queen Beatrix' in Palace het Loo on March 22, 2017 in Apeldoorn, Netherlands. The exhibition shows 100 hats of Queen Beatrix worn during her reign from 1980 till 2013. The hats are designed by Emy Bloemheuvel, Suzanne Moulijn and Harry Scheltens. (Photo by Patrick van Katwijk/Getty Images)

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APELDOORN, NETHERLANDS - MARCH 22 : Princess Beatrix of The Netherlands opens the exhibition 'Chapeaux, hats of Queen Beatrix' in Palace het Loo on March 22, 2017 in Apeldoorn, Netherlands. The exhibition shows 100 hats of Queen Beatrix worn during her reign from 1980 till 2013. The hats are designed by Emy Bloemheuvel, Suzanne Moulijn and Harry Scheltens. (Photo by Patrick van Katwijk/Getty Images)

APELDOORN, NETHERLANDS - MARCH 22 : Princess Beatrix of The Netherlands opens the exhibition 'Chapeaux, hats of Queen Beatrix' in Palace het Loo on March 22, 2017 in Apeldoorn, Netherlands. The exhibition shows 100 hats of Queen Beatrix worn during her reign from 1980 till 2013. The hats are designed by Emy Bloemheuvel, Suzanne Moulijn and Harry Scheltens. (Photo by Patrick van Katwijk/Getty Images)

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APELDOORN, NETHERLANDS - MARCH 22 : Princess Beatrix of The Netherlands opens the exhibition 'Chapeaux, hats of Queen Beatrix' in Palace het Loo on March 22, 2017 in Apeldoorn, Netherlands. The exhibition shows 100 hats of Queen Beatrix worn during her reign from 1980 till 2013. The hats are designed by Emy Bloemheuvel, Suzanne Moulijn and Harry Scheltens. (Photo by Patrick van Katwijk/Getty Images)

APELDOORN, NETHERLANDS - MARCH 22 : Princess Beatrix of The Netherlands opens the exhibition 'Chapeaux, hats of Queen Beatrix' in Palace het Loo on March 22, 2017 in Apeldoorn, Netherlands. The exhibition shows 100 hats of Queen Beatrix worn during her reign from 1980 till 2013. The hats are designed by Emy Bloemheuvel, Suzanne Moulijn and Harry Scheltens. (Photo by Patrick van Katwijk/Getty Images)