Columbia subject headings:
Church and state--Holy Roman Empire--History--17th century.
Church and state--Holy Roman Empire--History--18th century.
Ecclesiastical law--Holy Roman Empire.
Peace of Westphalia
Harvard subject headings:
Enlightenment.
Peace of Westphalia
Princeton subject headings:
Church and state--Holy Roman Empire--History--17th century.
Church and state--Holy Roman Empire--History--18th century.
Ecclesiastical law--Holy Roman Empire.
Holy Roman Empire--History--1648-1804.
Peace of Westphalia