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Belgian King Albert II with his wife Queen Paola (C) and Queen Fabiola, widow of the late King Baudouin I, wave from a balcony of the royal palace 09 August 1993 shortly after Albert's oath-taking.AFP PHOTO/PIERRE VERDY (Photo credit should read PIERRE VERDY/AFP/Getty Images)

Belgian King Albert II with his wife Queen Paola (C) and Queen Fabiola, widow of the late King Baudouin I, wave from a balcony of the royal palace 09 August 1993 shortly after Albert's oath-taking.AFP PHOTO/PIERRE VERDY (Photo credit should read PIERRE VERDY/AFP/Getty Images)

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STATE VISIT OF BELGIAN ROYALTY TO LUXEMBOURG (Photo by Reuter Raymond/Sygma via Getty Images)

STATE VISIT OF BELGIAN ROYALTY TO LUXEMBOURG (Photo by Reuter Raymond/Sygma via Getty Images)

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(Original Caption) The newly-weds on the balcony with Albert and Paola. (Photo by Patrick Durand/Sygma via Getty Images)

(Original Caption) The newly-weds on the balcony with Albert and Paola. (Photo by Patrick Durand/Sygma via Getty Images)

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BRUSSELS, BELGIUM: Queen Paola and King Albert II pose with their grandchildren during a photo session of the Belgian Royal family at the palace of Laken - Laeken, Brussels, 18 May 2004, on the occasion of the King's 70th birthday 06 June 2004. (Front, L-R) Princess Laetitia-Maria, Prince Joachim, Princess Louise, Princess Elisabeth, Prince Gabriel and Princess Louisa-Maria. (Back, L-R) Princess Maria-Laura and Prince Amedeo. AFP PHOTO/BELGA PHOTO ETIENNE ANSOTTE (Photo credit should read ETIENNE ANSOTTE/AFP via Getty Images)

BRUSSELS, BELGIUM:  Queen Paola and King Albert II pose with their grandchildren during a photo session of the Belgian Royal family at the palace of Laken - Laeken, Brussels, 18 May 2004, on the occasion of the King's 70th birthday 06 June 2004. (Front, L-R) Princess Laetitia-Maria, Prince Joachim, Princess Louise, Princess Elisabeth, Prince Gabriel and Princess Louisa-Maria. (Back, L-R) Princess Maria-Laura and Prince Amedeo.  AFP PHOTO/BELGA PHOTO ETIENNE ANSOTTE  (Photo credit should read ETIENNE ANSOTTE/AFP via Getty Images)

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VATICAN CITY, VATICAN - APRIL 27: Pope Francis greets King Albert II (L) and Queen Paola of Belgium after the canonisation in which John Paul II and John XXIII were declared saints on April 27, 2014 in Vatican City, Vatican. Dignitaries, heads of state and Royals from Europe and across the World attended the canonisations. (Photo by Dan Kitwood/Getty Images)

VATICAN CITY, VATICAN - APRIL 27:  Pope Francis greets King Albert II (L) and Queen Paola of Belgium after the canonisation in which John Paul II and John XXIII were declared saints on April 27, 2014 in Vatican City, Vatican. Dignitaries, heads of state and Royals from Europe and across the World attended the canonisations.  (Photo by Dan Kitwood/Getty Images)