Columbia subject headings:
Siena (Italy)--History.
Siena (Italy)--Politics and government.
Harvard subject headings:
Political customs and rites--Italy--Siena--Congresses.
Political rites and ceremonies--Italy--Siena--Congresses.
Renaissance--Italy--Siena--Congresses.
Siena (Italy)--Religious life and customs--Congresses.
Princeton subject headings:
Political rites and ceremonies--Italy--Siena--Congresses.
Renaissance--Italy--Siena--Congresses.
Siena (Italy)--Religious life and customs--Congresses.