MADRID, SPAIN - JUNE 22: Queen Letizia of Spain (L) pays tribute to Queen Sofia for her work at Help For Drug Addiction Foundation (FAD) on its 30th anniversary on June 22, 2016 in Madrid, Spain. (Photo by Europa Press/Europa Press via Getty Images)
MADRID, SPAIN - JUNE 22: Queen Letizia of Spain (L) pays tribute to Queen Sofia for her work at Help For Drug Addiction Foundation (FAD) on its 30th anniversary on June 22, 2016 in Madrid, Spain. (Photo by Europa Press/Europa Press via Getty Images)