Columbia subject headings:
Diplomatic and consular service, German--Italy--Rome--History--19th century.
Diplomatic and consular service, German--Italy--Rome--History--20th century.
Germans--Italy--Rome--Social life and customs--19th century.
Germans--Italy--Rome--Social life and customs--20th century.
Germany--Foreign relations--Italy--19th century.
Germany--Foreign relations--Italy--20th century.
Italy--Foreign relations--Germany--19th century.
Italy--Foreign relations--Germany--20th century.
Palazzo Caffarelli (Rome, Italy)--History.
Prussians--Italy--Rome--History--19th century.
Prussians--Italy--Rome--History--20th century.
Harvard subject headings:
Diplomatic and consular service, German--Italy--Rome--History--19th century.
Diplomatic and consular service, German--Italy--Rome--History--20th century.
Germans--Italy--Rome--Social life and customs--19th century.
Germans--Italy--Rome--Social life and customs--20th century.
Germany--Foreign relations--Italy.
Italy--Foreign relations--Germany--19th century.
Italy--Foreign relations--Germany--20th century.
Palazzo Caffarelli (Rome, Italy)--History.
Prussians--Italy--Rome--History--19th century.
Prussians--Italy--Rome--History--20th century.
Princeton subject headings:
Diplomatic and consular service, German--Italy--Rome--History--19th century.
Diplomatic and consular service, German--Italy--Rome--History--20th century.
Germany--Foreign relations--Italy.
Italy--Foreign relations--Gemrany.
Musei capitolini (Rome, Italy). Palazzo Caffarelli--History--19th century.
Musei capitolini (Rome, Italy). Palazzo Caffarelli--History--20th century.
Prussians--Italy--Rome--History--19th century.
Prussians--Italy--Rome--History--20th century.