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MEXICO CITY, MEXICO - JUNE 30: (L-R) Rector of the University of Salamanca Daniel Hernandez Ruiperez, Spanish King Felipe VI , Queen Letizia, Rector of UNAM Jose Narro and Director of Cervantes Institute, Victor Garcia pose for a photo during a visit to the Universidad Nacional (UNAM) at UNAM's Simon Bolivar Amphiteatre on June 30, 2015 in Mexico City, Mexico. The Spanish Monarchs are in their second state visit since the proclamation of Felipe VI as Spanish King last June 19th of 2014. (Photo by Daniel Cardenas/LatinContent via Getty Images)

MEXICO CITY, MEXICO - JUNE 30:  (L-R) Rector of the University of Salamanca Daniel Hernandez Ruiperez, Spanish King Felipe VI , Queen Letizia, Rector of UNAM Jose Narro and Director of Cervantes Institute,  Victor Garcia pose for a photo during a visit to the Universidad Nacional (UNAM) at UNAM's Simon Bolivar Amphiteatre on June 30, 2015 in Mexico City, Mexico. The Spanish Monarchs are in their second state visit since the proclamation of Felipe VI as Spanish King last June 19th of 2014. (Photo by Daniel Cardenas/LatinContent via Getty Images)