Columbia subject headings:
Catholic Church--Foreign relations--Italy--Tuscany--Sources.
Catholic Church. Treaties, etc. 1815 December 4--Sources.
Monasticism and religious orders--Italy--Tuscany--History--19th century--Sources.
Tuscany (Italy)--Foreign relations--Catholic Church--Sources.
Harvard subject headings:
Catholic Church--Foreign relations--Italy--Tuscany--Sources.
Catholic Church. Treaties, etc. 1815 December 4--Sources.
Monasticism and religious orders--Italy--Tuscany--History--19th century--Sources.
Tuscany (Italy)--Foreign relations--Catholic Church--Sources.
Princeton subject headings:
Catholic Church--Foreign relations--Italy--Tuscany--Sources.
Catholic Church. Treaties, etc. 1815 December 4--Sources.
Tuscany (Italy)--Foreign relations--Catholic Church--Sources.