Columbia subject headings:
Alexandru Ioan I Cuza, Prince of Romania, 1820-1873.
Negri, Costache, 1812-1876.
Romania--Kings and rulers--Correspondence.
Romania--Politics and government--19th century.
Statesmen--Romania--Correspondence.
Harvard subject headings:
Alexandru Ioan I Cuza, Prince of Romania, 1820-1873.
Negri, Costache, 1812-1876.
Romania--Kings and rulers--Correspondence.
Romania--Politics and government--19th century.
Statesmen--Romania--Correspondence.
Princeton subject headings: