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LISBON, PORTUGAL - NOVEMBER 30: King Felipe VI of Spain and his wife Queen Letizia visit, accompanied by Portuguese President Marcelo Rebelo de Sousa, the Champalimaud Foundation on the King and Queen of Spain's three-days state visit on November 30, 2016 in Lisbon, Portugal. The mission of the Champalimaud Foundation is to develop programs of advanced biomedical research and provide clinical care of excellence, with a focus on translating pioneering scientific discoveries into solutions which can improve the quality of life of individuals around the world. (Photo by Horacio Villalobos - Corbis/Getty Images)

LISBON, PORTUGAL - NOVEMBER 30: King Felipe VI of Spain and his wife Queen Letizia visit, accompanied by Portuguese President Marcelo Rebelo de Sousa, the Champalimaud Foundation on the King and Queen of Spain's three-days state visit on November 30, 2016 in Lisbon, Portugal. The mission of the Champalimaud Foundation is to develop programs of advanced biomedical research and provide clinical care of excellence, with a focus on translating pioneering scientific discoveries into solutions which can improve the quality of life of individuals around the world. (Photo by Horacio Villalobos - Corbis/Getty Images)

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King Felipe VI of Spain and Queen Letizia looks on after a solemn session on the Portuguese Parliament during the third day of the Spains Royal state visit to Portugal on November 30, 2016. ( Photo by Pedro Fiúza/NurPhoto via Getty Images)

King Felipe VI of Spain and Queen Letizia looks on after a solemn session on the Portuguese Parliament during the third day of the Spains Royal state visit to Portugal on November 30, 2016.  ( Photo by Pedro Fiúza/NurPhoto via Getty Images)

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King Felipe VI of Spain and Queen Letizia (L ) shake hands with the President of the Portuguese Parliament Eduardo Ferro Rodrigues and his wife Maria Filomena de Aguilar (R ) after a solemn session on the Portuguese Parliament during the third day of the Spains Royal state visit to Portugal on November 30, 2016. ( Photo by Pedro Fiúza/NurPhoto via Getty Images)

King Felipe VI of Spain and Queen Letizia (L ) shake hands with the President of the Portuguese Parliament Eduardo Ferro Rodrigues and his wife Maria Filomena de Aguilar (R ) after a solemn session on the Portuguese Parliament during the third day of the Spains Royal state visit to Portugal on November 30, 2016.  ( Photo by Pedro Fiúza/NurPhoto via Getty Images)

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King Felipe VI of Spain and Queen Letizia looks on after a solemn session on the Portuguese Parliament during the third day of the Spains Royal state visit to Portugal on November 30, 2016. ( Photo by Pedro Fiúza/NurPhoto via Getty Images)

King Felipe VI of Spain and Queen Letizia looks on after a solemn session on the Portuguese Parliament during the third day of the Spains Royal state visit to Portugal on November 30, 2016.  ( Photo by Pedro Fiúza/NurPhoto via Getty Images)

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LISBON, PORTUGAL - NOVEMBER 30: King Felipe VI of Spain (L) and his wife Queen Letizia (R) visit, accompanied by Portuguese President Marcelo Rebelo de Sousa, the Champalimaud Foundation on the Kings of Spain last of their three-days state visit on November 30, 2016 in Lisbon, Portugal. The mission of the Champalimaud Foundation is to develop programs of advanced biomedical research and provide clinical care of excellence, with a focus on translating pioneering scientific discoveries into solutions which can improve the quality of life of individuals around the world. (Photo by Horacio Villalobos - Corbis/Getty Images)

LISBON, PORTUGAL - NOVEMBER 30: King Felipe VI of Spain (L) and his wife Queen Letizia (R) visit, accompanied by Portuguese President Marcelo Rebelo de Sousa, the Champalimaud Foundation on the Kings of Spain last of their three-days state visit on November 30, 2016 in Lisbon, Portugal. The mission of the Champalimaud Foundation is to develop programs of advanced biomedical research and provide clinical care of excellence, with a focus on translating pioneering scientific discoveries into solutions which can improve the quality of life of individuals around the world. (Photo by Horacio Villalobos - Corbis/Getty Images)