Columbia subject headings:
Harvard subject headings:
Authors, Austrian--19th century--Correspondence.
Authors, Austrian--20th century--Correspondence
Hofmannsthal, Hugo von, 1874-1929--Correspondence.
Thurn und Taxis, Marie, Princess, 1855-1934--Correspondence.
Princeton subject headings:
Authors, Austrian--19th century--Correspondence.
Authors, Austrian--20th century--Correspondence.
Hofmannsthal, Hugo von, 1874-1929--Correspondence.
Personal correspondence.
Thurn und Taxis, Marie, Princess, 1855-1934. Correspondence.