Columbia subject headings:
Ballhorn-Rosen, Friedrich, 1774-1855--Correspondence.
Detmold (Germany)--Biography.
Detmold (Germany)--History--Sources.
Lippe (Germany)--History--Sources.
Rosen, Georg, 1820-1891--Correspondence.
Harvard subject headings:
Ballhorn-Rosen, Friedrich, 1774-1855--Correspondence.
Detmold (Germany)--History--Sources.
Lippe (Principality)--History--Sources.
Rosen, Georg, 1820-1891--Correspondence.
Princeton subject headings:
Ballhorn-Rosen, Friedrich, 1774-1855--Correspondence.
Detmold (Germany)--Biography.
Detmold (Germany)--History--Sources.
Lippe (Principality)--History--Sources.
Rosen, Georg, 1820-1891--Correspondence.