Columbia subject headings:
Marie, Queen, consort of Ferdinand I, King of Romania, 1875-1938.
Queens--Romania--Biography.
Harvard subject headings:
Marie, Queen, consort of Ferdinand I, King of Romania, 1875-1938.
Queens--Romania--Biography.
Princeton subject headings:
Marie, Queen, consort of Ferdinand I, King of Romania, 1875-1938.
Queens--Romania--Biography.