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COPENHAGEN, DENMARK - MARCH 28: King Philippe (L)and Queen Mathilde (R) of Belgium together with Queen Margrethe of Denmark pose inside Amalienborg Palace reception hall on March 28, 2017 in Copenhagen, Denmark. The royal Belgian couple will be on a state visit from March 28 till March 30. (Photo by Ole Jensen - Corbis/Corbis via Getty Images)

COPENHAGEN, DENMARK - MARCH 28: King Philippe (L)and Queen Mathilde (R) of Belgium together with Queen Margrethe of Denmark pose inside Amalienborg Palace reception hall on March 28, 2017 in Copenhagen, Denmark. The royal Belgian couple will be on a state visit from March 28 till March 30. (Photo by Ole Jensen - Corbis/Corbis via Getty Images)

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COPENHAGEN, DENMARK - MARCH 29: King Philippe and Queen Mathilde of Belgium arrive to the their return arragenemt at the Black Diamond on March 29, 2017 in Copenhagen, Denmark. This event completes King Philippe's and Queen Mathilde's 2 days state visit to Denmark. (Photo by Ole Jensen - Corbis/Corbis via Getty Images)

COPENHAGEN, DENMARK - MARCH 29: King Philippe and Queen Mathilde of Belgium arrive to the their return arragenemt at the Black Diamond on March 29, 2017 in Copenhagen, Denmark. This event completes King Philippe's and Queen Mathilde's 2 days state visit to Denmark. (Photo by Ole Jensen - Corbis/Corbis via Getty Images)

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Queen Mathilde of Belgium (L) and Crown Princess Mary of Denmark visit Amager Faelled School on March 29, 2017 during a visit of Belgian royal couple to Denmark. / AFP PHOTO / Scanpix Denmark / Keld Navntoft / Denmark OUT (Photo credit should read KELD NAVNTOFT/AFP/Getty Images)

Queen Mathilde of Belgium (L) and Crown Princess Mary of Denmark visit Amager Faelled School on March 29, 2017 during a visit of Belgian royal couple to Denmark.  / AFP PHOTO / Scanpix Denmark / Keld Navntoft / Denmark OUT        (Photo credit should read KELD NAVNTOFT/AFP/Getty Images)

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(L-R) Crown Princess Mary, Crown Prince Frederik, King Philippe, Queen Margrethe, Queen Mathilde, Prince Joachim and Princess Marie pose for a photo at the state banquet on March 28, 2017 at Christiansborg Castle in Copenhagen. The Belgian Royal Couple is on a two-day state visit to Denmark. / AFP PHOTO / Scanpix Denmark / Keld Navntoft / Denmark OUT (Photo credit should read KELD NAVNTOFT/AFP/Getty Images)

(L-R) Crown Princess Mary, Crown Prince Frederik, King Philippe, Queen Margrethe, Queen Mathilde, Prince Joachim and Princess Marie pose for a photo at the state banquet on March 28, 2017 at Christiansborg Castle in Copenhagen.
The Belgian Royal Couple is on a two-day state visit to Denmark. / AFP PHOTO / Scanpix Denmark / Keld Navntoft / Denmark OUT        (Photo credit should read KELD NAVNTOFT/AFP/Getty Images)