Columbia subject headings:
Harvard subject headings:
Austria--History--Maria Theresa, 1740-1780--Sources.
Empresses--Austria--Correspondence.
Female friendship--Austria--History--18th century.
Maria Theresa, Empress of Austria, 1717-1780--Correspondence.
Maria Theresa, Empress of Austria, 1717-1780. Correspondence. Selections
Princeton subject headings:
Austria--History--Maria Theresa, 1740-1780--Sources.
Empresses--Austria--Correspondence.
Female friendship--Austria--History--18th century.
Maria Theresa, Empress of Austria, 1717-1780--Correspondence.