BARCELONA, SPAIN - APRIL 14: Queen Letizia of Spain attends the 2nd Congress of Rare Childhood Diseases at CosmoCaixa on April 14, 2015 in Barcelona, Spain. (Photo by Miquel Benitez/WireImage)
BARCELONA, SPAIN - APRIL 14: Queen Letizia of Spain attends the 2nd Congress of Rare Childhood Diseases at CosmoCaixa on April 14, 2015 in Barcelona, Spain. (Photo by Miquel Benitez/WireImage)