Columbia subject headings:
Books--Germany--Prussia--History.
Private libraries--Germany--Prussia--History.
Harvard subject headings:
Books and reading--Germany--History--16th century.
Books and reading--Germany--Prussia--History.
Books--Germany--Prussia--History.
Private libraries--Germany--Prussia--History.
Private libraries--Germany--Prussia.
Reformation--Germany--Prussia.
Schlossbibliothek von Königsberg--History.
Princeton subject headings:
Books--Germany--Prussia--History.
Private libraries--Germany--Prussia--History.