Columbia subject headings:
Amalia, Queen, consort of Otho I, King of Greece, 1818-1875--Correspondence.
Paul Friedrich August, Grand Duke of Oldenburg, 1783-1853--Correspondence.
Queens--Greece--Correspondence.
Harvard subject headings:
Amalia, Queen, consort of Otho I, King of Greece, 1818-1875--Correspondence.
Greece--History--Otho I, 1832-1862--Sources.
Princeton subject headings:
Amalia, Queen, consort of Otho I, King of Greece, 1818-1875--Correspondence.
Greece--History--Otho I, 1832-1862--Sources.