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MADRID, SPAIN - MAY 20: Princess Leonor of Spain (L) and Princess Sofia of Spain (R) arrive at the Asuncion de Nuestra Senora Church for the First Communion of the Princess Leonor of Spain on May 20, 2015 in Aravaca, near of Madrid, Spain. (Photo by Carlos Alvarez/Getty Images)

MADRID, SPAIN - MAY 20:  Princess Leonor of Spain (L) and Princess Sofia of Spain (R) arrive at the Asuncion de Nuestra Senora Church for the First Communion of the Princess Leonor of Spain on May 20, 2015 in Aravaca, near of Madrid, Spain.  (Photo by Carlos Alvarez/Getty Images)