Columbia subject headings:
Leo X, Pope, 1475-1521.
Papal States--History--Leo X, 1513-1521.
Harvard subject headings:
Leo X, Pope, 1475-1521.
Papal States--History--Leo X, 1513-1521.
Princeton subject headings:
Leo X, Pope, 1475-1521.
Papal States--History--Leo X, 1513-1521.