Columbia subject headings:
Cathedral libraries--Italy--Siena--Congresses.
Christian art and symbolism--Italy--Siena--Congresses.
Duomo di Siena--Congresses.
Library decoration--Italy--Siena--Congresses.
Libreria Piccolomini--Congresses.
Mural painting and decoration, Renaissance--Italy--Siena--Congresses.
Pius III, Pope, approximately 1440-1503--Art patronage--Congresses.
Siena (Italy)--Buildings, structures, etc.--Congresses.
Harvard subject headings:
Cathedral libraries--Italy--Siena--Congresses.
Christian art and symbolism--Italy--Siena--Congresses.
Duomo di Siena--Congresses.
Library decoration--Italy--Siena--Congresses.
Libreria Piccolomini--Congresses.
Mural painting and decoration, Renaissance--Italy--Siena--Congresses.
Pius II, Pope, 1405-1464--Art patronage--Congresses.
Siena (Italy)--Buildings, structures, etc.--Congresses.
Princeton subject headings:
Cathedral libraries--Italy--Siena--Congresses.
Christian art and symbolism--Italy--Siena--Congresses.
Duomo di Siena--Congresses.
Library decoration--Italy--Siena--Congresses.
Libreria Piccolomini--Congresses.
Mural painting and decoration, Renaissance--Italy--Siena--Congresses.
Pius III, Pope, approximately 1440-1503--Art patronage--Congresses.
Siena (Italy)--Buildings, structures, etc.--Congresses.