Columbia subject headings:
Harvard subject headings:
Ovens, Juriaen, 1623-1678.
Samwer, Karl, 1819-1882.
Schleswig-Holstein (Germany)--History--Sources.
Princeton subject headings:
Ovens, Juriaen, 1623-1678.
Samwer, Karl Friedrich Lucian, 1819-1882.
Schleswig-Holstein--History--Sources.