Columbia subject headings:
Joachim I, Elector of Brandenburg, 1484-1535.
Law--Germany--Prussia.
Law--Germany.
Prussia (Germany)--Constitutional history.
Harvard subject headings:
Law--Germany--Brandenburg.
Law--Germany--History
Princeton subject headings:
Joachim I, Elector of Brandenburg, 1484-1535.
Law--Germany--Prussia.
Law--Germany.
Prussia (Germany)--Constitutional history.