Columbia subject headings:
Harvard subject headings:
France--History--Revolution, 1789-1799--Refugees--History.
France--History--Revolution, 1789-1799--Refugees.
French--Portugal--History--18th century.
Portugal--History--Maria I, 1777-1816.
Princeton subject headings:
France--History--Revolution, 1789-1799--Refugees.
French--Portugal--History--18th century.
Portugal--History--Maria I, 1777-1816.