Columbia subject headings:
Borbón y Battenberg, Juan de, 1913-1993.
Princes--Spain--Biography.
Spain--History--1939-1975.
Harvard subject headings:
Borbón y Battenberg, Juan de, 1913-1993.
Monarchy--Spain--History--20th century.
Spain--Kings and rulers--Succession.
Spain--Politics and government--1939-1975.
Princeton subject headings: