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GRASSANO, ITALY - JULY 24: Chiara de Blasio, daughter of New York City Mayor Bill de Blasio, attends a welcome ceremony during a visit to Mayor de Blasio's grandmother's town on July 24, 2014 in Grassano, Italy. The New York City mayor and his family are on an eight-day holiday in Italy but de Blasio has plans to meet with Italy's foreign minister, Federica Mogherini, and with Cardinal Pietro Parolin, Vatican secretary of state. (Photo by Giovanni Marino/Getty Images)

GRASSANO, ITALY - JULY 24:  Chiara de Blasio, daughter of New York City Mayor Bill de Blasio, attends a welcome ceremony during a visit to Mayor de Blasio's grandmother's town on July 24, 2014 in Grassano, Italy.  The New York City mayor and his family are on an eight-day holiday in Italy but de Blasio has plans to meet with Italy's foreign minister, Federica Mogherini, and with Cardinal Pietro Parolin, Vatican secretary of state. (Photo by Giovanni Marino/Getty Images)