Columbia subject headings:
Law--Spain--Aragon--History.
Harvard subject headings:
Citizenship--Spain--Aragon--History.
Citizenship--Spain--History.
Monarchy--Spain--History
Nationalism--Spain--Aragon--History.
Nationalism--Spain--History
Princeton subject headings:
Nationalities, Principle of.
Self-determination, National--Spain.
Spain--History--711-1516.