Columbia subject headings:
Charles V, Holy Roman Emperor, 1500-1558.
Ferdinand I, Holy Roman Emperor, 1503-1564.
Maximilian II, Holy Roman Emperor, 1527-1576.
Süleyman I, Sultan of the Turks, 1494 or 1495-1566--Correspondence.
Harvard 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.
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.