Doña María del Carmen Franco y Polo was 1st Duchess of Franco Grande of Spain and the only daughter of General Franco .
In December 1969 Alfonso was appointed Ambassador of Spain to Sweden , a position he held until 1973.On March 8 , 1972 , in the Palace of El Pardo in Madrid , Alfonso married Doña María del Carmen Martínez-Bordiú , daughter of don Cristobal de Villaverde Martínez y Bordiú , later Martínez-Bordiú , 10th Marquess of Villaverde , Medical Doctor , responsible for the first heart transplant ever performed in Spain , and of his wife , Doña María del Carmen Franco y Polo , Duchess of Franco ( only daughter of General Franco ) .
Alfonso, Duke of Anjou and Cádiz