Columbia subject headings:
Great Britain--History--Charles I, 1625-1649.
Henrietta Maria, Queen, consort of Charles I, King of England, 1609-1669.
Harvard subject headings:
Great Britain--History--Charles I, 1625-1649.
Henrietta Maria, Queen, consort of Charles I, King of England, 1609-1669.
Queens--Great Britain--Correspondence
Princeton subject headings:
Great Britain--History--Charles I, 1625-1649.