Columbia subject headings:
Europe--History--1492-1648--Sources.
Europe--Kings and rulers--Correspondence.
Sultans--Turkey--Correspondence.
Süleyman I, Sultan of the Turks, 1494 or 1495-1566--Correspondence.
Turkey--History--Süleyman I, 1520-1566--Sources.
Harvard subject headings:
Archives--Austria--Vienna--Indexes.
Turkey--Archival resources--Austria--Vienna--Indexes
Turkey--History--Archival resources--Austria--Vienna--Indexes.
Österreichisches Staatsarchiv--Indexes.
Princeton subject headings:
Europe--History--1492-1648--Sources.
Europe--Kings and rulers--Correspondence.
Sultans--Turkey--Correspondence.
Süleyman I, Sultan of the Turks, 1494 or 1495-1566--Correspondence.
Turkey--History--Süleyman I, 1520-1566--Sources.