MADRID, SPAIN - MAY 22: (L-R) Queen Letizia of Spain, King Felipe VI of Spain, King Juan Carlos and Queen Sofia attend the 40th anniversary of Reina Sofia Alzheimer Foundation on May 22, 2017 in Madrid, Spain. (Photo by Antonio Gutierrez - Pool/Getty Images)
MADRID, SPAIN - MAY 22: (L-R) King Felipe VI of Spain, Queen Letizia of Spain, King Juan Carlos and Queen Sofia attend the 40th anniversary of Reina Sofia Alzheimer Foundation on May 22, 2017 in Madrid, Spain. (Photo by Antonio Gutierrez - Pool/Getty Images)
MADRID, SPAIN - MAY 22: (L-R) King Juan Carlos, Queen Letizia of Spain, King Felipe VI of Spain and Queen Sofia attend the 40th anniversary of Reina Sofia Alzheimer Foundation on May 22, 2017 in Madrid, Spain. (Photo by Antonio Gutierrez - Pool/Getty Images)
MADRID, SPAIN - MAY 22: Queen Sofia attends the 40th anniversary of Reina Sofia Alzheimer Foundation on May 22, 2017 in Madrid, Spain. (Photo by Antonio Gutierrez - Pool/Getty Images)
MADRID, SPAIN - MAY 22: Queen Letizia of Spain attends the 40th anniversary of Reina Sofia Alzheimer Foundation on May 22, 2017 in Madrid, Spain. (Photo by Antonio Gutierrez - Pool/Getty Images)
