Columbia subject headings:
Cathedral libraries--Italy--Siena.
Library decoration--Italy--Siena.
Libreria Piccolomini.
Harvard subject headings:
Cathedral libraries--Italy--Siena.
Library decoration--Italy--Siena.
Libreria Piccolomini.
Pintoricchio, approximately 1454-1513.
Pius II, Pope, 1405-1464--Portraits.
Princeton subject headings:
Libreria Piccolomini.
Mural painting and decoration, Italian--Italy--Siena.
Siena (Italy)--Buildings, structures, etc.