Columbia subject headings:
Christianity and politics--Italy.
Italy--Politics and government.
Religion and politics.
Harvard subject headings:
Christianity and politics--Catholic Church--Congresses.
Christianity and politics--Europe--History--Congresses.
Christianity and politics--Italy--History--Congresses.
Councils and synods--Europe--History--Congresses.
Councils and synods--Italy--History--Congresses.
Europe--Church history--Congresses.
Italy--Church history--Congresses.
Religion and politics--Europe--Congresses.
Religion and politics--Italy--Congresses.
Princeton subject headings: