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BRUSSELS, BELGIUM - JULY 02: Wedding of Prince Albert of Belgium with Donna Paola Ruffo Di Calabria in Brussels, Belgium, on July 2, 1959. (Photo by REPORTERS ASSOCIES/Gamma-Rapho via Getty Images)

BRUSSELS, BELGIUM - JULY 02:  Wedding of Prince Albert of Belgium with Donna Paola Ruffo Di Calabria in Brussels, Belgium, on July 2, 1959. (Photo by REPORTERS ASSOCIES/Gamma-Rapho via Getty Images)

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Prince Albert of Belgium, later King Albert II of Belgium weds Princess Paola of Belgium (later Queen Paola of Belgium), 2nd July 1959. The couple are seen here at the Royal Palace of Laeken for the civil ceremony which precedes the religious ceremony. (Photo by Keystone/Hulton Archive/Getty Images)

Prince Albert of Belgium, later King Albert II of Belgium weds Princess Paola of Belgium (later Queen Paola of Belgium), 2nd July 1959. The couple are seen here at the Royal Palace of Laeken for the civil ceremony which precedes the religious ceremony. (Photo by Keystone/Hulton Archive/Getty Images)

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BRUSSELS, BELGIUM - JULY 02: Wedding of Prince Albert of Belgium with Donna Paola Ruffo Di Calabria in Brussels, Belgium on July 2, 1959. (Photo by REPORTERS ASSOCIES/Gamma-Rapho via Getty Images)

BRUSSELS, BELGIUM - JULY 02:  Wedding of Prince Albert of Belgium with Donna Paola Ruffo Di Calabria in Brussels, Belgium on July 2, 1959. (Photo by REPORTERS ASSOCIES/Gamma-Rapho via Getty Images)

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Prince Albert of Belgium, later King Albert II of Belgium and his bride Princess Paola (later Queen Paola of Belgium) pose with family members for a special picture after their wedding day, 3rd July 1959. L - R; Princess Lilian of Belgium (1916 - 2002) Prince Albert of Belgium, later King Albert II of Belgium, Princess Paola of Belgium (later Queen Paola of Belgium), Donna Luisa Ruffo di Calabria, Ex-King Leopold III of Belgium (1901 - 1983), Princess Marie-Christine of Belgium. (Photo by Keystone/Hulton Archive/Getty Images)

Prince Albert of Belgium, later King Albert II of Belgium and his bride Princess Paola (later Queen Paola of Belgium) pose with family members for a special picture after their wedding day, 3rd July 1959. L - R; Princess Lilian of Belgium (1916 - 2002) Prince Albert of Belgium, later King Albert II of Belgium, Princess Paola of Belgium (later Queen Paola of Belgium), Donna Luisa Ruffo di Calabria, Ex-King Leopold III of Belgium (1901 - 1983), Princess Marie-Christine of Belgium. (Photo by Keystone/Hulton Archive/Getty Images)

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BRUSSELS, BELGIUM - JULY 02: Wedding of Prince Albert of Belgium with Donna Paola Ruffo Di Calabria in Brussels, Belgium, on July 2, 1959. (Photo by REPORTERS ASSOCIES/Gamma-Rapho via Getty Images)

BRUSSELS, BELGIUM - JULY 02:  Wedding of Prince Albert of Belgium with Donna Paola Ruffo Di Calabria in Brussels, Belgium, on July 2, 1959. (Photo by REPORTERS ASSOCIES/Gamma-Rapho via Getty Images)