Columbia subject headings:
Albrecht Achilles, Elector of Brandenburg, 1414-1486.
Frederick III, Holy Roman Emperor, 1415-1493.
Holy Roman Empire--History--15th century.
Holy Roman Empire--Politics and government.
Harvard subject headings:
Albrecht Achilles, Elector of Brandenburg, 1414-1486.
Frederick III, Holy Roman Emperor, 1415-1493.
Holy Roman Empire--History--1273-1517.
Holy Roman Empire--Politics and government.
Princeton subject headings:
Albrecht Achilles, Elector of Brandenburg, 1414-1486.
Frederick III, Holy Roman Emperor, 1415-1493.
Holy Roman Empire--History--15th century.
Holy Roman Empire--Politics and government.