Columbia subject headings:
Harvard subject headings:
Italy--History--1870-1914.
Margherita, Queen, consort of Umberto I, King of Italy, 1851-1926
Queens--Italy--Biography
Savoy, House of.
Umberto I, King of Italy, 1844-1900.
Princeton subject headings:
Italy--Kings and rulers--Biography.
Margherita, Queen, consort of Umberto I, King of Italy, 1851-1926.
Umberto I, King of Italy, 1844-1900.