Columbia subject headings:
Antonelli, Giacomo, 1806-1876.
Cardinals--Italy--Correspondence.
De Luca, Antonino, 1805-1883.
Italy--History--1849-1870--Sources.
Harvard subject headings:
Antonelli, Giacomo, 1806-1876--Correspondence.
Antonelli, Giacomo, 1806-1876.
Cardinals--Italy--Correspondence.
Catholic Church--Foreign relations--Europe.
De Luca, Antonino, 1805-1883--Correspondence.
De Luca, Antonino, 1805-1883.
Europe--Foreign relations--Catholic Church.
Italy--History--1849-1870--Sources.
Princeton subject headings:
Antonelli, Giacomo, 1806-1876.
Cardinals--Italy--Correspondence.
De Luca, Antonino, 1805-1883.
Italy--History--1849-1870--Sources.