Columbia subject headings:
Harvard subject headings:
Catholic converts--Italy--Rome--History--17th century--Congresses.
Christian converts from Islam--Italy--Rome--History--17th century--Congresses.
Christian converts from Judaism--Italy--Rome--History--17th century--Congresses.
Conversion--Catholic Church--History--17th century--Congresses.
Conversion--History--17th century--Congresses.
Jews--Conversion to Christianity--Italy--Rome--History--17th century--Congresses.
Religion and politics--Italy--Rome--History--17th century--Congresses.
Princeton subject headings:
Catholic converts--Italy--Rome--History--17th century--Congresses.
Christian converts from Islam--Italy--Rome--History--17th century--Congresses.
Christian converts from Judaism--Italy--Rome--History--17th century--Congresses.
Conversion--Catholic Church--History--17th century--Congresses.
Conversion--History--17th century--Congresses.
Jews--Conversion to Christianity--Italy--Rome--History--17th century--Congresses.
Religion and politics--Italy--Rome--History--17th century--Congresses.