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BERLIN, GERMANY - JULY 05: King Willem-Alexander and Queen Maxima of The Netherlands visits the Brandenburger Tor on July 5, 2021 in Berlin, Germany. Their Majesties are paying their first official visit since the global health crisis began over a year ago, with a state visit to Germany from July 5-7. (Photo by Patrick van Katwijk/Getty Images)

BERLIN, GERMANY - JULY 05: King Willem-Alexander and Queen Maxima of The Netherlands visits the Brandenburger Tor on July 5, 2021 in Berlin, Germany. Their Majesties are paying their first official visit since the global health crisis began over a year ago, with a state visit to Germany from July 5-7. (Photo by Patrick van Katwijk/Getty Images)

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BERLIN, GERMANY - JULY 05: King Willem-Alexander and Queen Maxima of The Netherlands visits the Brandenburger Tor on July 5, 2021 in Berlin, Germany. Their Majesties are paying their first official visit since the global health crisis began over a year ago, with a state visit to Germany from July 5-7. (Photo by Patrick van Katwijk/Getty Images)

BERLIN, GERMANY - JULY 05: King Willem-Alexander and Queen Maxima of The Netherlands visits the Brandenburger Tor on July 5, 2021 in Berlin, Germany. Their Majesties are paying their first official visit since the global health crisis began over a year ago, with a state visit to Germany from July 5-7. (Photo by Patrick van Katwijk/Getty Images)

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BERLIN, GERMANY - JULY 05: King Willem-Alexander and Queen Maxima of The Netherlands visits the Brandenburger Tor on July 5, 2021 in Berlin, Germany. Their Majesties are paying their first official visit since the global health crisis began over a year ago, with a state visit to Germany from July 5-7. (Photo by Patrick van Katwijk/Getty Images)

BERLIN, GERMANY - JULY 05: King Willem-Alexander and Queen Maxima of The Netherlands visits the Brandenburger Tor on July 5, 2021 in Berlin, Germany. Their Majesties are paying their first official visit since the global health crisis began over a year ago, with a state visit to Germany from July 5-7. (Photo by Patrick van Katwijk/Getty Images)

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BERLIN, GERMANY - JULY 05: King Willem-Alexander and Queen Maxima of The Netherlands visits the Brandenburger Tor on July 5, 2021 in Berlin, Germany. Their Majesties are paying their first official visit since the global health crisis began over a year ago, with a state visit to Germany from July 5-7. (Photo by Patrick van Katwijk/Getty Images)

BERLIN, GERMANY - JULY 05: King Willem-Alexander and Queen Maxima of The Netherlands visits the Brandenburger Tor on July 5, 2021 in Berlin, Germany. Their Majesties are paying their first official visit since the global health crisis began over a year ago, with a state visit to Germany from July 5-7. (Photo by Patrick van Katwijk/Getty Images)

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BERLIN, GERMANY - JULY 05: King Willem-Alexander and Queen Maxima of The Netherlands visit the Brandenburger Tor with Berlin Mayor Michael Mueller on July 5, 2021 in Berlin, Germany. Their Majesties are paying their first official visit since the global health crisis began over a year ago, with a state visit to Germany from July 5-7. (Photo by Patrick van Katwijk/Getty Images)

BERLIN, GERMANY - JULY 05: King Willem-Alexander and Queen Maxima of The Netherlands visit the Brandenburger Tor with Berlin Mayor Michael Mueller on July 5, 2021 in Berlin, Germany. Their Majesties are paying their first official visit since the global health crisis began over a year ago, with a state visit to Germany from July 5-7. (Photo by Patrick van Katwijk/Getty Images)