Columbia subject headings:
Detention of persons--France--History--18th century.
Du Fossé, Augustin François Thomas, 1750-1833.
France--History--Revolution, 1789-1799.
Lettres de cachet.
Williams, Helen Maria, 1762-1827--Correspondence.
Harvard subject headings:
Detention of persons--France--History--18th century.
Du Fossé, Augustin François Thomas, 1750-1833.
France--History--Revolution, 1789-1799.
Lettres de cachet.
Williams, Helen Maria, 1762-1827--Correspondence.
Princeton subject headings: